Easy
4.8
(4)
16
hikers
Bolærne Coastal Trail
00:58
3.71km
30m
Hiking
Easy hike. Easily walkable paths.
Last updated: July 22, 2026
Waypoints
A
Start point
Ferry Terminal
1
1.66 km
Bolærne Fort
Highlight • Historical Site
Built in the early 20th century, Bolærne Fort was part of Norway’s coastal defence system and remained in military use until 2004. Today, its restored bunkers, gun emplacements and military buildings offer a fascinating insight into the islands’ strategic history.
Tip by
2
1.76 km
Old Gun Emplacement and Viewpoint
Highlight • Viewpoint
This former gun emplacement was once part of Bolærne Fort’s coastal defence system, strategically positioned to control shipping through the Oslofjord.
Tip by
3
2.67 km
Old Tunnel
Highlight • Structure
This tunnel was once part of Bolærne Fort’s underground defence system, connecting gun positions, shelters and operational facilities within the island.
Tip by
B
3.71 km
End point
Ferry Terminal
Way Types & Surfaces
Way Types
2.17 km
1.54 km
Surfaces
1.91 km
1.28 km
378 m
143 m
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Tuesday 3 November
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