Highlights
Mariehamn
The only town, with tree-lined streets and harbours on both sides. The four-masted barque Pommern, moored in the western harbour beside the Maritime Museum, is one of the last surviving sailing ships from the grain trade between Australia and Europe.
Kastelholm Castle and Jan Karlsgården
A medieval stone castle in Sund, once the administrative centre of the islands under the Swedish crown. Next to it, the open-air museum of Jan Karlsgården gathers traditional farm buildings, windmills and a maypole.
Bomarsund Fortress
The ruins of a huge Russian fortress begun in the 1830s and destroyed by British and French forces in 1854 during the Crimean War. Its long granite walls lie in the woods by the water, with a small visitor centre across the strait.
Cycling the archipelago
Åland is flat, quiet and laid out for bikes, with signposted routes that hop between islands on small car and cable ferries. The northern and southern archipelago routes take you through farmland, fishing villages and open skerries.
Kökar
A remote outer island reached by a longer ferry trip, with bare rock, juniper heath and the ruins of a medieval Franciscan monastery beside Hamnö church. It shows the wilder, more exposed side of the archipelago.
Eckerö Post and Customs House
A grand neoclassical building on the westernmost point, designed by Carl Ludvig Engel when Åland was part of the Russian Empire, and intended to impress travellers arriving from Sweden. It now houses a small museum and craft studios.
Medieval churches
Åland has a group of stone churches dating back to the Middle Ages, including those at Jomala, Finström and Hammarland, several with painted interiors. They are some of the oldest buildings in the Finnish region.
Interesting facts about Åland Islands
- Åland has been demilitarised since the end of the Crimean War in 1856, and its autonomy within Finland was confirmed by a League of Nations decision in 1921.
- Swedish is the only official language of Åland, even though it is part of Finland.
- The islands have their own flag, postage stamps, vehicle registration and internet domain, .ax.
- Åland is part of the EU but outside its VAT area, which is why ferries between Finland and Sweden stop at Mariehamn and can keep selling tax-free goods.
- The archipelago is made up of thousands of islands and skerries, of which only around sixty are inhabited.
Best time to visit
June to August is the main season, with long light evenings, warm but rarely hot days and the full ferry timetable. Midsummer, in late June, is celebrated with decorated maypoles in villages across the islands. May and September are quieter and good for cycling, though some cafés and attractions keep shorter hours. Winters are dark and mild for the Nordics, but much of the tourist infrastructure closes and the sea can freeze in cold years.
Practical information
| Capital | Mariehamn |
|---|---|
| Currency | Euro (EUR) |
| Languages | Swedish |
| Plugs | Type C, F |
| Voltage | 230 V, 50 Hz |
| Emergency | 112 for police, ambulance and fire |
| Driving | On the right |
| Tipping | Not expected. Service is included in prices; rounding up in a café or restaurant is a kind gesture but not required. |
Getting around
Large ferries link Mariehamn with Turku, Helsinki and Stockholm, and there are short flights from Helsinki and Stockholm. On the islands, a network of small ferries connects the main island to the archipelago municipalities; some need advance booking in summer. Buses run from Mariehamn to the main villages, but services are limited, so most visitors cycle or bring a car. Bikes are easy to hire in Mariehamn.
Staying connected in Åland Islands
Mobile coverage is good across the main island and most inhabited islands, and 4G is widely available. Expect weaker signal on open water between islands and on small outer skerries. Free Wi-Fi is common in cafés, guest harbours, accommodation and on the large ferries, though ferry Wi-Fi can be slow at sea. Note that the large ferries may switch to a maritime network away from shore, which can be charged separately, so turn off data roaming on board if you are unsure. Install your eSIM before you travel and switch it on when you arrive.
See Åland Islands eSIM plans · How to install an eSIM
Useful apps for Åland Islands
- Google Maps: Cycling and driving directions across the islands; download the area for offline use before heading out to the archipelago.
- Yr: Reliable Nordic weather forecasts, useful for planning cycling days and ferry crossings.
- Google Translate: Translates Swedish signs and menus, though most people in tourism also speak English.