Key takeaways
The Aland Islands are a Swedish-speaking autonomous archipelago between Finland and Sweden with excellent 4G and expanding 5G coverage in Mariehamn and the main islands, served primarily by local operator Alcom with Telia Finland roaming support. As an EU territory but outside the EU VAT area, roaming rules are complex for some carriers. A Roamix Aland Islands eSIM gives you reliable connectivity across Mariehamn and the main island chains. Budget 3 to 5 GB for a week, and download offline maps of the outer skerry routes before heading to the remote islands by boat.
- Alcom is the primary local network operator, offering 4G LTE across all inhabited islands and 5G in Mariehamn.
- A Roamix eSIM activates on arrival and works across the main islands without roaming complications from home-carrier pricing.
- The Aland Islands are an EU territory but outside the EU VAT area, so not all EU roaming agreements apply predictably.
- Ferries from Turku and Stockholm stop at Mariehamn and Langnas, with onboard wifi available on major Viking Line and Tallink Silja vessels.
- Cache offline maps before visiting the outer archipelago by boat or kayak, as remote skerries have no signal.
Best way to get data in Aland Islands
For most visitors to the Aland Islands, a Roamix eSIM gives reliable connectivity across Mariehamn and the main islands with no pricing surprises.
| Option | Best for | Good to know |
|---|---|---|
| Roamix eSIMRecommended | Best for: Most travellers | Activates on Alcom's network on arrival, no physical SIM to source and no roaming complications from home-carrier Aland Islands pricing. |
| EU SIM card from Finland or Sweden | Best for: Travellers already with Finnish or Swedish SIMs | EU Roam Like At Home may apply, though Aland Islands status can be inconsistent. Check with your operator before relying on this. |
| Pocket wifi | Best for: Groups sharing a connection | Another device to charge and carry. Less practical for cycling routes where a single phone is preferred. |
| Carrier roaming | Best for: Very short visits with no setup time | Can be expensive depending on your home carrier's treatment of the Aland Islands. Confirm pricing before relying on roaming. |
Free wifi is available in Mariehamn hotels, cafes and the ferry terminals. Coverage stops at the buildings and is patchy outside the capital. Mobile data via Roamix is more reliable for cycling and island-hopping.
How much data you need
Data needs in the Aland Islands are modest for most visitors, focused on navigation, ferry schedules and accommodation communication. Outdoor activities on the outer islands require offline preparation.
2 to 3 GB
Three day city break in Mariehamn
Navigation, social media, restaurant bookings and museum information in the capital.
4 to 5 GB
Week-long cycling and island-hopping trip
Cycling navigation, ferry schedule checking, offline map downloads and accommodation communication across multiple islands.
10 GB or more
Remote work stay in Mariehamn
Video calls, cloud uploads and tethering alongside sightseeing, where hotel wifi is supplemented by mobile data.
Data per hour, by activity
- Maps and cycling navigation
- 5 MB per hour online, 0 MB when offline
- Social media and photo sharing
- 100 to 150 MB
- Ferry timetable and booking apps
- Under 10 MB per session
- Video streaming
- 700 MB to 1 GB
- Video calls
- 500 MB to 1 GB
Download the full archipelago map pack for the Aland Islands in Google Maps or a cycling app before leaving Mariehamn, as outer islands have no signal.
How to set up a Aland Islands eSIM
Install your Roamix Aland Islands eSIM over wifi before departure. It activates when you connect to Alcom's network in Mariehamn or on the first island, whether arriving by ferry from Turku or Stockholm or by air at Mariehamn Airport.
- 1
Purchase your Roamix Aland Islands eSIM plan before departure.
- 2
Scan the QR code or tap to install the eSIM over a wifi connection.
- 3
Label the eSIM line 'Roamix' and keep your home SIM as the primary line.
- 4
Enable data roaming on the Roamix line only.
- 5
Arrive in Mariehamn or on the main island and the eSIM connects to Alcom automatically.
Works on eSIM-capable devices including iPhone XS and newer, Google Pixel 3 and newer, and recent Samsung Galaxy models. The device must be carrier unlocked.
Roamix sets the correct APN automatically. If data does not start, apply the APN from your order and toggle airplane mode.
If data does not connect, confirm data roaming is on for the Roamix line, manually select Alcom in network settings and restart.
Visa and entry for Aland Islands
The Aland Islands are an autonomous territory of Finland and part of the EU, so EU citizens and nationalities exempt from EU Schengen visas can enter freely. The islands are outside the EU VAT area, giving them limited tax-free shopping rights.
- eVisa or ETA
- No separate visa or eTA is required for the Aland Islands. Standard Schengen visa rules apply as the territory is entered via Finnish or Swedish borders. Most nationalities requiring a Schengen visa can apply through Finland.
- Passport validity
- Your passport or EU ID card should be valid for the duration of your stay. At least three months of validity beyond departure is recommended.
- Onward ticket
- No onward ticket requirement for EU and Schengen nationals. Non-EU visitors may be asked to show proof of onward travel.
Have your ferry e-tickets and any accommodation confirmations saved on your phone before boarding. Use your Roamix eSIM to access tickets and maps during the crossing.
Entry requirements follow Finnish and EU rules. Confirm current Schengen visa requirements at the Finnish Immigration Service at migri.fi before booking.
When you land in Aland Islands
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How people message here
Locals communicate in Swedish and use a mix of WhatsApp, iMessage and standard SMS. English is spoken widely in Mariehamn and by tourism staff across the islands.
Do you need a local number?
You do not need a local number for a tourist visit. Accommodation bookings, ferry reservations and most services work with your existing number or online.
Keep your home SIM active for SMS two-factor authentication while using the Roamix eSIM for data.
Airports in Aland Islands
MHQ
Mariehamn Airport
Mariehamn
The small regional airport has wifi available in the terminal. Coverage is adequate for downloading maps and checking ferry connections before heading into town.
The airport is only 3 km from central Mariehamn. Activate your Roamix eSIM on the approach and use it to navigate to your accommodation and check the archipelago ferry timetable.
TKU
Turku Airport (ferry gateway to Aland)
Turku, Finland (ferry to Mariehamn, approx 2.5 hours)
Free wifi throughout TKU terminal. Finnish DNA and Elisa 4G are strong at the airport. The Viking Line and Tallink Silja ferry terminals in Turku are 15 minutes from TKU.
Most Aland visitors travel via the Turku to Mariehamn ferry. Install your Roamix eSIM at TKU over terminal wifi before boarding the overnight or daytime crossing. The eSIM hands off to Telia Finland on the Finnish side and connects to Telia Finland roaming on Aland.
Apps and internet access in Aland Islands
The Aland Islands have a fully open internet. All common apps work normally on a Roamix eSIM.
There are no internet censorship or platform restrictions in the Aland Islands. No VPN is required for any service.
WhatsApp, works
Fully available for messaging and calls.
FaceTime, works
Works normally over data and wifi.
Google Maps and Search, works
No restrictions. Download the archipelago offline map package before heading into the outer islands.
Social media, works
Instagram, X, TikTok and Facebook all work without restriction.
Getting around Aland Islands
The Aland Islands are best explored by bicycle and free inter-island ferry. The main island is compact and flat, with a comprehensive cycling network. Outer archipelago routes require the free state ferries or chartered boats.
Cycling
The main island has over 200 km of cycling routes marked on detailed maps. Use Roamix data for live navigation and offline maps for the quieter farm tracks between villages.
Free archipelago ferries
The Aland government operates a network of free ferries connecting the outer islands. Download the ferry timetable over Roamix data in Mariehamn before island-hopping, as schedules are seasonal and limited.
Baltic cruise ferries
Viking Line and Tallink Silja ferries from Turku, Helsinki and Stockholm stop at Mariehamn and Langnas. Both companies offer onboard wifi, though speeds vary. Your Roamix eSIM works better than onboard wifi for personal connectivity.
Local buses and taxis
Local bus routes serve the main island villages. Taxis are available in Mariehamn. Book via phone or local apps using your Roamix data connection.
Rent a bicycle on arrival for the main island and use your Roamix eSIM to download the official Aland Islands cycling map from visitaland.com before heading out.
Money and payments in Aland Islands
The euro is the official currency. Card payments are accepted in Mariehamn and most tourist businesses. Carry a small amount of cash for remote farm shops, island cafes and market stalls.
- Cards and cash
- Cards are accepted nearly everywhere in Mariehamn and at ferry terminals. Some outer island farms and small cafes are cash only, so carry 20 to 30 euros in small notes.
- ATMs
- ATMs are available in Mariehamn's town centre. No ATMs exist on the outer islands. Withdraw euros before leaving the main island.
- Payment apps
- Apple Pay and Google Pay are accepted in major Mariehamn shops and cafes. Local banks use Finnish banking apps for transfers.
- Tipping
- Tipping is not expected but appreciated. Rounding up to the nearest euro at cafes or leaving 5 to 10 percent at restaurants is a polite gesture for good service.
Daily budget
Budget travellers can manage around 80 to 100 euros a day. Mid-range visitors spending on ferries, cycling hire and restaurants should budget 120 to 180 euros.
Local tips for Aland Islands
- Language
- Swedish is the only official language in the Aland Islands, a legacy of the territory's Scandinavian character. English is spoken by virtually all tourism staff and most residents in Mariehamn.
- Food
- Aland Islands cuisine is centred on Baltic fish, especially perch, pike and herring, alongside local pancakes (Alandspannkaka) served with plum jam, and the famous Aland black bread. Mariehamn has excellent harbour cafes and a growing selection of seasonal Nordic restaurants.
- Plugs
- 230V, Type C and F plugs
Apps worth having
Visit Aland official app
tourism
Official visitor guide with cycling routes, ferry timetables and island activities, all useful with Roamix data or offline.
Google Maps (offline)
navigation
Download the Aland Islands offline map package for cycling navigation in the outer archipelago where Alcom coverage drops out.
Viking Line or Tallink Silja app
ferry
Manage your ferry booking, check departures from Mariehamn and Langnas, and track live departure times over Roamix data.
Safety and health in Aland Islands
The Aland Islands are one of the safest destinations in Europe. The main risk for outdoor visitors is unexpected weather on the Baltic, which can ground ferries and cause conditions to change quickly at sea.
- Stay reachable
- Keep your Roamix eSIM active when sailing or kayaking in the outer archipelago so you can check weather forecasts and call for assistance. Download the Finnish Maritime Administration's archipelago charts offline before remote trips.
- Health
- Healthcare is available at Aland Central Hospital in Mariehamn. EU citizens with an EHIC card receive covered care. Non-EU visitors should carry travel health insurance.
- Tap water
- Tap water is safe to drink across all the inhabited islands.
Networks and coverage in Aland Islands
The Aland Islands are served by Alcom (Alands Telekommunikation Ab), the local archipelago operator, which provides 4G LTE across all inhabited islands and 5G in the capital Mariehamn. Telia Finland also provides coverage under roaming agreements. A Roamix Aland Islands eSIM connects to the strongest available network, keeping you online in Mariehamn's maritime old town and across the main island chain.
Alcom (Alands Telekommunikation Ab)
The archipelago's dedicated local operator with 4G LTE across all inhabited islands, 5G in Mariehamn, and the longest-standing coverage of the remote outer skerries.
Telia Finland
Available on roaming agreements and provides a secondary network option in the main island, particularly useful on the eastern approaches from mainland Finland.
- Typical speeds
- 50 to 100 Mbps on 4G LTE in Mariehamn, 20 to 50 Mbps on outer island routes.
- 5G
- 5G is live in Mariehamn and expanding to major population centres on the main island.
Alcom gives you the best local coverage in Mariehamn and on the main inhabited islands. For island-hopping by ferry or boat, download your archipelago navigation charts and accommodation details over data in Mariehamn before you leave the dock.
The outer archipelago islands, uninhabited skerries and remote kayaking routes east of the main island have very limited or no coverage. In these areas, even Alcom's network drops out completely. Download offline maps before taking any boat trip into the outer island chains. Alcom operates on standard European LTE bands including Band 3 (1800 MHz) and Band 20 (800 MHz), compatible with virtually all modern unlocked smartphones.
Where to go in Aland Islands
The Aland Islands reward slow travel. The main island around Mariehamn is compact and cycling-friendly, while the outer archipelago requires ferry hopping between hundreds of skerries. A Roamix eSIM keeps ferry schedules, accommodation confirmations and navigation working across the islands.
Best time to visit
Late May to August for long summer days, warm sea temperatures and all ferry routes operating. June for the midsummer celebrations. September for quieter island atmosphere and golden light on the sea.
Mariehamn and the Main Island
The capital Mariehamn is a charming wooden harbour town with a maritime museum, the sailing ship Pommern, a pedestrian high street and ferry connections to both Finland and Sweden. Most of the island's cycling routes radiate from here.
- Mariehamn Maritime Museum
- Sailing ship Pommern
- Storagatan shopping street
- Jan Karlsgarden open-air museum
- West Harbour marina
Excellent 4G LTE and 5G coverage across Mariehamn and the main island roads. Alcom covers the entire municipality reliably.
Sund and the Eastern Archipelago
The eastern part of the main island features Kastelholm Castle, a preserved medieval fortress beside a lake, and the Aland Viking era sites at Kvarnbo. The Bomarsund fortress ruins from 1854 are a highlight of Baltic history.
- Kastelholm Castle
- Bomarsund fortress ruins
- Kvarnbo Viking sites
- Langnas ferry terminal
- Saltviksviken bay
Good 4G coverage along the main roads through Sund and Saltvik. Remote farm roads and coastal paths may have weaker signal.
Lemland and Lumparland
The southern parishes south of Mariehamn, connected by the free ferry over the Lemstrom Canal, offer quiet cycling routes through forests, traditional red farmhouses and access to the ferry crossing to Foglo.
- Lemstrom Canal lock
- Foglo ferry crossing
- Lemland Church
- Nyhamn lighthouse
- Herrnas cycling route
Alcom 4G covers the main roads. The Lemstrom Canal and ferry crossing areas have good coverage.
Foglo and the Outer Skerry Archipelago
The outer archipelago islands of Foglo, Koko and beyond are reached by free inter-island ferries and offer increasingly remote fishing culture, seabird colonies and the classic Aland experience of sea, sky and silence.
- Foglo archipelago cycling
- Koko island bird reserve
- Klobbenudden lighthouse
- Husso village fishing culture
- Outer skerry kayaking routes
Coverage thins significantly beyond Foglo's main village. Remote skerries and outer islands have no reliable signal on any network. Download all maps and ferry schedules in Mariehamn before departing.
Geta and the North
The northern tip of the main island around Geta features the highest point in the Aland Islands, Orrdalsklint at 129 metres, with views across the archipelago, plus forested cycling trails and a traditional church village.
- Orrdalsklint summit
- Geta Church
- Bastubadan lake
- Berghamn lighthouse
- Norra Overby trail
Alcom 4G covers Geta village and the main cycling routes. Forested tracks and the summit area of Orrdalsklint may have patchy signal.
Off the beaten path
A preserved medieval castle surrounded by a lake in the eastern main island, Kastelholm dates from the 14th century and served as a royal Swedish residence. The adjacent Vita Bjorn prison museum adds historical depth.
Signal: Good Alcom 4G coverage at the castle and surrounding Sund municipality. The castle museum and courtyard have reliable signal for photos and sharing.
The scattered ruins of a massive Russian fortress destroyed by Anglo-French forces in 1854 during the Crimean War, spread across a wooded peninsular above the sea, offer a unique chapter of Baltic military history amid peaceful birch forests.
Signal: Alcom 4G covers the Bomarsund area and the surrounding coastal road. The ruins are near the main road with good signal.
One of the last surviving four-masted sailing ships in the world, moored in the West Harbour as a museum ship. The Pommern is the centrepiece of the maritime heritage that defines Aland Islands identity.
Signal: Excellent 5G and 4G coverage throughout the Mariehamn harbour area where Pommern is permanently moored.
The highest point in the Aland Islands gives a sweeping view across the flat sea of the northern archipelago, forested ridges and the red houses of the Geta village below, a classic Nordic landscape from above.
Signal: Alcom 4G covers the trail and summit area at 129 metres, the highest point in the Aland Islands. Signal is reliable for photos and navigation from the top.
The classic outer archipelago island experience, with free state ferries connecting clusters of low-lying islands, red fishing huts, bird-rich skerries and a slower pace of Baltic island life just a short ferry hop from the main island.
Signal: Alcom 4G covers Foglo's main village. Remote island cycling routes and outer skerries quickly drop to no signal. Download all maps in Mariehamn or Foglo village before cycling into the outer islands.
A preserved 19th-century Aland farm estate with original windmills, cottages and farm buildings that recreate traditional island life, considered one of the finest open-air museums in the Nordic countries.
Signal: Good Alcom 4G coverage in the Saltvik area. The museum grounds have reliable signal for photos and sharing.
A red wooden lighthouse on a low rocky point at the southern tip of Lemland, accessible by a short cycling path from the village, offering wide views of the Baltic shipping lanes and summer evening light.
Signal: Alcom 4G reaches Nyhamn on the southern coast of Lemland. The lighthouse area and adjacent sea rocks have reliable signal.
The outer archipelago of the Aland Islands is one of Scandinavia's finest sea kayaking destinations, with a network of sheltered bays, flat granite skerries and free-to-use wilderness shelters spread across hundreds of islands.
Signal: No reliable coverage beyond the main inhabited islands on any network. Plan all kayaking routes entirely offline and communicate with shore contacts from the mainland ferry terminals before paddling out.
The main maritime museum beside the West Harbour traces the Aland Islands' extraordinary history as a global shipping centre in the age of sail, with models, navigational instruments and stories from the era when Aland skippers commanded fleets across the world's oceans.
Signal: Excellent Alcom 5G and 4G coverage in the West Harbour museum district. Mariehamn's waterfront has some of the best connectivity in the islands.
A cycling and driving trail connecting Viking-era burial mounds at Saltvik, traditional farmhouses serving the famous Alandspannkaka pancake with local plum jam, and medieval churches where Swedish-language heritage is still actively practiced.
Signal: Good Alcom 4G coverage across the main island roads that connect the heritage farms and Viking-era burial mound sites.
Events and seasons in Aland Islands
Late May or early June
Aland Marathon and Running Festival
Mariehamn
An annual road marathon and fun run through the cycling paths and roads of Mariehamn and the southern main island, one of the most scenic small-city marathons in Scandinavia with views of the Baltic throughout the course.
June 9, Autonomy Day
Aland Independence Day
Mariehamn
Aland's Autonomy Day marks the first session of the Aland Parliament in 1922, celebrated with a ceremony at the Parliament building, flag raising across the islands, traditional songs and a public gathering in Mariehamn.
June, Friday and Saturday closest to June 24
Aland Midsummer Festival
Mariehamn and island villages
Midsummer is the biggest celebration of the year in the Aland Islands, with maypole dancing, bonfires on the shoreline, traditional singing and feasting across the archipelago. Mariehamn's harbour fills with decorated boats.
July, across several weeks
Aland Music Festival (Alands Musiksommar)
Mariehamn and venue churches
A summer chamber music and classical concert series held in Mariehamn's theatre and in medieval stone churches across the main island, with visiting musicians from Scandinavia and Europe performing in intimate Nordic settings.
July and August, weekends
Aland Pancake Day at farmhouses
Traditional farms across the main island
A summer tradition where traditional island farms open their kitchens to serve the famous Alandspannkaka, a thick oven-baked pancake served warm with stewed plum jam. Participating farms rotate through the summer season.
August, typically first or second week
Aland Archipelago Classic Sailing Race
Mariehamn and outer archipelago
A classic wooden boat race through the outer archipelago routes, drawing heritage vessels from across Scandinavia to compete in the Aland Islands' signature sailing event, with the start and finish in Mariehamn's West Harbour.
Late August
Pub Marathon Mariehamn
Mariehamn
A popular summer street festival where participants follow a route between Mariehamn's waterfront bars and cafes, drawing visitors from the Baltic ferry routes and local islanders for an end-of-summer celebration.
September
Baltic Herring Market and Food Festival
Mariehamn harbour
An autumn celebration of Baltic herring and traditional Aland island food, with fishing boats selling fresh catch directly from the harbour, market stalls, cooking demonstrations and the season's last outdoor dining along the waterfront.
Late October
Aland Halloween at Kastelholm Castle
Kastelholm Castle, Sund
A family-friendly Halloween evening event at the medieval Kastelholm Castle, with guided tours of the candlelit fortress, historical ghost stories and activities for children, one of the most atmospheric Halloween events in Scandinavia.
December, first three weekends
Christmas Market Mariehamn
Mariehamn town centre
A traditional Nordic Christmas market along Storagatan in the centre of Mariehamn, with handcrafted gifts, Aland candles, local jams and preserves, mulled wine and gingerbread against the backdrop of the Baltic island winter light.
Through the year
- Spring
- April and May bring the first long days, migrating seabirds and the opening of cycling season. Weather is unpredictable and some island facilities do not open until late May.
- Summer
- June to August is peak season with up to 18 hours of daylight, warm Baltic sea temperatures and all island ferries running. Midsummer is the highlight. Accommodation books up months in advance.
- Fall
- September and October bring golden light, empty cycling paths and the Baltic herring market. Temperatures drop to 10 to 15 degrees and some outer island ferries reduce frequency.
- Winter
- November to March is quiet with dark days and temperatures around 0 to minus 5C. Mariehamn is peaceful and the Christmas market draws visitors in December. Most outer island facilities close.
Working remotely from Aland Islands
Mariehamn is a pleasant and peaceful remote work base, with good cafes, reliable 4G and a slower pace than mainland Finland or Sweden. The islands attract creative professionals during summer.
- Connection
- 4G in Mariehamn handles video calls and cloud uploads well. Outer island connectivity is unsuitable for work without advance planning.
Work from Mariehamn's cafes on Storagatan or from your hotel, then island-hop on weekends. Use your Roamix eSIM as a secure backup to hotel wifi for sensitive calls.
