Grótta (pronounced [ˈkrouhta]) is a tied island at the extreme end of Seltjarnarnes in the Capital Region of Iceland.
During high tide the tombolo is completely submerged, turning Grótta into an island.
[3] Grótta became a nature reserve in 1974[1] and it is forbidden to visit it during nesting season, from 1 May to 15 July.
[2] The local search and rescue association is named after long term lighthouse keeper Albert Þorvarðarson (1910–1973).
[2] The municipality acquired the buildings in 1994 and they are now used as occasional facilities for groups on school trips.