Bomarsund Fortress Ruins – Kastelholm Castle loop from Bomarsunds fästning

Routes

Bike touring routes & trails

Finland

Åland Islands

Sund

Bomarsund Fortress Ruins – Kastelholm Castle loop from Bomarsunds fästning

Hard

5.0

(3)

riders

Bomarsund Fortress Ruins – Kastelholm Castle loop from Bomarsunds fästning

05:05

83.8km

580m

Cycling

Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is accessible with public transport.

Last updated: September 24, 2026

Tips

Cycling is not permitted along parts of this route

After 73.6 km for 90 m

After 73.9 km for 246 m

Waypoints

Start point

Bus stop

Get Directions

26 m

Bomarsund Fortress

Highlight • Historical Site

Russian fortifications from the Russo-Finnish War in the 18th century.

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370 m

Bomarsund Fortress Ruins

Highlight • Historical Site

Good Starting Point for Hikes

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440 m

Puttes Camping Ground

Highlight • Rest Area

Nice and cheap camping with tent spots on grass and/or at the shore. There is also a great swimming spot, bungalows, toilets, kitchen, sauna, a kiosk and a restaurant (open until 7pm!).

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48.2 km

Tullarns äng

Nature Reserve

49.6 km

Esplanade of Mariehamn

Highlight • Viewpoint

In the Åland archipelago, which consists of more than 6700 skerries and islands, of which only 60 are permanently inhabited. The archipelago forms the gateway to the Gulf of Bothnia …

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49.9 km

Pommern Museum Ship

Highlight • Monument

Visiting the Pomeranian in Mariehamn is a must. But very informative and entertaining. The audio guide in particular contains some interesting anecdotes. We recommend!

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57.4 km

Jomala Church

Highlight • Religious Site

Finland's oldest stone parish church and the oldest stone masonry building.

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73.7 km

Kastelholm Castle

Highlight • Castle

Kastelholm (Swedish: Kastelholms slott, Finnish: Kastelholma) is a medieval castle in Sund, on the Finnish archipelago of Åland. The castle-like castle was built on a small island surrounded by a …

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74.0 km

Jan Karlsgården Open-Air Museum

Highlight • Historical Site

Remarkably beautiful open-air museum with free admission. Next to each house, there is brief information about the construction period, origin, and use, also in English.

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83.8 km

End point

Bus stop

Way Types & Surfaces

Way Types

37.5 km

31.5 km

8.44 km

4.79 km

1.28 km

238 m

114 m

Surfaces

72.3 km

5.29 km

2.86 km

2.03 km

1.41 km

< 100 m

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Weather

Monday 19 October

11°C

2°C

-- %

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Comments

July 23, 2025,Rundtour Mariehamn - Kastelholm

A very beautiful, but somewhat strenuous, tour due to the elevation gain. In Kastelholm, visitors will find an interesting open-air museum, a good restaurant, and, of course, Kastelholm Castle. 🏰

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