Tips
David Howells
June 4, 2026
Spro Caves, which are also known as Spro Gruve or the Crow Silver Mines, are an abandoned silver and stone mine located on the Nesodden peninsula. They date back to the 1880s, but it was mainly active between 1904 to 1918. You have a main tunnel which plunges about 30 metres into the mountain before it opens out into a large sunlit cavern that shimmers with the trace elements of a variety of mica minerals, including muscovite, which make the walls shimmer like silver.
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Nearby routes
Best routes near Spro Caves
2.45km
00:42
50m
50m
Easy hike. Great for any fitness level. Easily-accessible paths. Suitable for all skill levels.
Easy
5.0
(2)
16
hikers
16.6km
04:41
350m
350m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Moderate
Details
Informations
Elevation 20 m
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Wednesday 1 July
19°C
14°C
99 %
Additional weather tips
Max wind speed: 21.0 km/h