Grotta Lighthouse
A lighthouse on a tidal island at the edge of Reykjavik, cut off twice a day and closed for nesting.
Updated 30 August 2026
Grotta stands at the western tip of Seltjarnarnes, on the edge of the built-up area but facing open sea, and the island it occupies is joined to the shore by a spit that floods on every high tide. People are caught out by that regularly. The present lighthouse dates from 1947, replacing an earlier one, and the island is closed to visitors from 1 May to 15 July while eider and arctic terns nest. On the shore beside the path is Kvika, a small stone footbath fed with geothermal water, made by the artist Olof Nordal. The point is one of the standard places in the capital to look for the northern lights, being dark and facing away from the city.
Highlights
- A lighthouse of 1947 - on an island cut off at high tide.
- A causeway that floods - twice a day, catching people out.
- Closed for nesting - 1 May to 15 July, for eider and terns.
- Kvika footbath - a stone geothermal basin by the path.
When to go
Year round, avoiding the closed nesting season for the island itself. Two hours.
Things to know
Check the tide before crossing - the water comes back faster than it looks. In the closed season you can only view from the shore. It is exposed and often bitterly windy. Parking is limited in the residential streets nearby.
Nearby
Central Reykjavik is fifteen minutes east; the coastal path runs from here.
Key facts
Source: Wikidata, item Q3378240, read on 18 October 2026.
What to pack for Grotta Lighthouse
Chosen from what this place is for. Tap a kit for the full checklist.
- Spare batteries + cards - Cold and long shoots drain power; never run out at the good light. Find on Amazon
- Warm base layers - Merino or synthetic against the skin - never cotton, which chills when damp. Find on Amazon
- Comfortable walking shoes - Sightseeing means kilometres of pavement and cobbles daily. Find on Amazon
- Swimwear - Needed at most public thermal pools; some traditional baths are nude and single-sex. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.


