Aland Islands · 2026 guide
Things to Do in Mariehamn
Everything you need to explore Mariehamn — top attractions, local dining, insider tips and transport.
Museum in Mariehamn
Located on the waterfront, this museum showcases Åland's maritime history and features a collection of ships and maritime artifacts.
🕐 May-September: 10am-5pm, October-April: 12pm-4pm
💡 Check out the museum's outdoor exhibits, which include a historic lighthouse and a replica of a 19th-century sailing ship.
Hotels near Åland Maritime Museum →This museum features a collection of art and cultural exhibits that showcase the Åland Islands' unique culture and history.
🕐 June-August: 10am-5pm, May-September: 12pm-4pm
💡 The museum's café serves delicious pastries and coffee.
Hotels near Åland Islands Museum of Arts →This museum is located in a beautiful old house and features exhibits on the history of Mariehamn and the Åland Islands.
🕐 June-August: 10am-5pm, May-September: 12pm-4pm
💡 The museum's backyard has a lovely garden with a small playground for kids.
Hotels near Mariehamn City Museum →Historic in Mariehamn
A medieval castle that dates back to the 14th century and features a beautiful park and a museum.
🕐 June-August: 10am-5pm, May-September: 12pm-4pm
💡 Take a guided tour to learn more about the castle's history and see the impressive medieval architecture.
Hotels near Kastelholm Castle →Landmark in Mariehamn
A 100-meter-long cave that features ancient rock paintings and is a popular spot for hiking and outdoor activities.
🕐 June-August: 10am-5pm, May-September: 12pm-4pm
💡 Take a guided tour to learn more about the cave's history and geology.
Hotels near Lummelunda Cave →Frequently Asked Questions
What are the best things to do in Mariehamn?
The top attractions include Åland Maritime Museum, Åland Islands Museum of Arts, Mariehamn City Museum, Kastelholm Castle, Lummelunda Cave.
How many days do you need in Mariehamn?
Most visitors spend 2–4 days to see the main highlights. Three days is ideal for a first visit — see our Mariehamn 3-day itinerary for a day-by-day plan.
What is Mariehamn famous for?
Mariehamn is known for its history, culture and distinctive character. Visitors come for the landmarks, food scene and local atmosphere.