Journey 25 km east of Mariehamn to the hauntingly beautiful 14th-century Kastelholm Castle — Åland's most dramatic landmark — paired with the enchanting Jan Karlsgården open-air museum of historic Nordic farm life.
What to expect
Kastelholm Castle rises dramatically from the surrounding lakes and birch forest, its medieval towers reflected in the water below. Inside, restored chambers and exhibits bring to life centuries of Swedish royal drama, Viking heritage, and Åland's strategic Baltic importance. A short walk away, Jan Karlsgården is a beautifully preserved 18th-century farm where costumed interpreters demonstrate traditional Nordic crafts and agriculture. Together they form an unmissable portrait of island history.
Good to know
Located ~25 km from port — arrange a private taxi or rental car in advance (local taxi firms serve the route, journey ~25 minutes). Allow 2.5–3 hours on-site. The road passes through gorgeous Åland countryside. Open daily in summer; check castle seasonal hours before visiting.
Sail there
Luxury cruises that call at Mariehamn — book through us, the fare is identical and your concierge stays on your side.