Grótta

Island Volcanic islet and nature reserve near Reykjavík

A tidal peninsula near Reykjavík, Grótta is reached on foot at low tide to a lighthouse; visitors watch seabirds, sunsets and-in season-the northern lights from the shore.

Main image

Grótta is a small tidal peninsula at the western tip of the Seltjarnarnes headland near Reykjavík in Iceland. It is known for its lighthouse and its function as a coastal nature area.

The area is used for birdwatching, coastal walks and photography. A tidal causeway links Grótta to the headland at low tide, and the lighthouse at the tip is a common focal point for visitors.

Grótta has long been used as a coastal landmark and local nature area; the lighthouse marks the tip of the peninsula and the surrounding flats form important habitat for seabirds.

Located on the outer edge of the Reykjavík urban area, Grótta sits on Seltjarnarnes just west of the city and is reachable by a short drive or public transport from central Reykjavík.

  • Tidal causeway access: Access to the peninsula is across a tidal causeway that becomes passable at low tide; visitors should check local tide times before crossing.
  • Best times to visit: The site is a popular local spot for sunset views and, in winter, for aurora sightings when conditions allow.

What to See #

  • Grótta lighthouse: A small lighthouse and keeper's building sit at the tip of the peninsula and are a focal point for visitors and photographers, especially at sunset and in winter.
  • Nature reserve and birding areas: Shoreline and tidal flats that form a protected bird area where seabirds and migratory species can be observed from the peninsula and adjacent paths.
Grótta
Grótta (Seltjarnarnes Peninsula), near Reykjavík, Iceland (approx. coordinates 64.16438, -22.02193)
64.1644, -22.0219
Open year-round
Free

How to Get to Grótta #

Grótta is reached by car or bus from central Reykjavík to the Seltjarnarnes peninsula; a walk from Reykjavík city center is possible (roughly 40-60 minutes) along coastal paths and bike routes.

Tips for Visiting Grótta #

  • Time a visit around sunset for dramatic views across the bay and possible seal sightings near the headland.
  • Watch tide charts if planning to walk the sandbar - it can be submerged at high tide.
  • Bring a windproof layer; the headland can be much cooler than Reykjavik even in summer.

Best Time to Visit Grótta #

Summer for long daylight and mild walks; winter for northern lights if prepared for cold and wind.

Summer
June-August · 6-15°C
Midnight sun and long, gentle evenings; ideal for birdwatching and walks.
Autumn & Spring
September-October & April-May · 0-10°C
Migratory bird windows and dynamic weather; quieter than summer.
Winter
November-March · -5-4°C
Northern lights visible on clear nights if lights are off; cold and windy.

Weather & Climate near Grótta #

Climate
Temperature & Rainfall
Temperature Range
23°
Warmest Month
-14°
Coldest Month
Monthly Conditions

January

Weather

0.0
UV Index
Low
5.0h daylight

February

Weather

0.0
UV Index
Low
8.2h daylight

March

Weather

0.1
UV Index
Low
11.5h daylight

April

Weather

0.4
UV Index
Low
14.9h daylight

May

Weather

0.8
UV Index
Moderate
18.2h daylight

June

Weather

1.0
UV Index
High
20.4h daylight

July

Weather

1.0
UV Index
Moderate
19.3h daylight

August

Weather

0.6
UV Index
Moderate
16.1h daylight

September

Weather

0.3
UV Index
Low
12.8h daylight

October

Weather

0.1
UV Index
Low
9.5h daylight

November

Weather

0.0
UV Index
Low
6.0h daylight

December

Weather

0.0
UV Index
Low
3.6h daylight

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