Grjótagjá Cave
Grjótagjá Cave is a landscape in North Iceland, Iceland — about 475 km from Reykjavik and reached by a drive to the trailhead and a short walk in (footwear and weather check). Shoot it during the summer window, when light, road status, and crowd levels line up for photography, then use the GPS coordinates, parking notes, and nearby waypoints below to fold this stop into a longer photography route.
Overview
Grjótagjá is a small lava cave near lake Mývatn in the Northeastern Region of Iceland.
As a photography stop, Grjótagjá Cave is a landscape in North Iceland, roughly 475 km from Reykjavik, reached by a drive to the trailhead and a short walk in (footwear and weather check). Plan the shoot during the summer window, when light, road status, and crowd levels line up for photography. The downloadable Landscape map pins exact GPS coordinates, parking, and nearby waypoints so you can fold it into a wider route instead of hunting for the pull-off on arrival.
Grjótagjá Cave is one waypoint of many — you can load all 62 landscape viewpoints before you leave signal.
Notes on this location
Compiled from published sources rather than a visit. Sources are listed below.
A small lava cave near Mývatn holding a thermal spring. Its temperature rose above 50 °C during the 1975–1984 eruptions and has since fallen back below that.
- What it is
- A small lava cave with a thermal spring, near Lake Mývatn
- Temperature
- Exceeded 50 °C during the 1975–1984 eruptions; has since cooled below 50 °C again
- Bathing
- Was a popular bathing spot before those eruptions; nearby Stóragjá is now used as an alternative bathing site
A hot spring inside a cave means warm, humid air meeting cold outside air, which is hard on a lens brought in from a winter car — the fogging is the practical problem here, not the light. Note the water is a spring inside a fissure rather than an open pool, so the subject is a narrow shaft of daylight on water, not a landscape.
SourcesGrjótagjá — Wikipedia
Light & aurora at this spot
Calculated from this location’s coordinates (65.605, -17.042). Iceland stays on UTC year-round, so these are local times.
- Summer
- 22.9 h of daylight in June and the sun barely sets, dipping only 1.1° below the horizon — effectively continuous golden light through the small hours.
- Winter
- December: only 3.3 h of daylight (11:26–14:41), but the sun never climbs above 1.1° — the entire day is golden hour. Sunrise bears SSE, sunset SSW.
- Aurora
- Aurora-grade darkness Sep–Mar, peaking at 13 h a night in December. Not possible Apr, May, Jun, Jul, Aug — the sky never gets dark enough.
Bar height is daylight hours. Months marked • have enough astronomical darkness for aurora; the rest do not.
Questions & answers
Grjótagjá Cave is a landscape in North Iceland, Iceland, approximately 475 km from Reykjavik. Exact GPS coordinates are included in the downloadable Landscape map.
The recommended season for Grjótagjá Cave is Summer. For light, plan around blue hour and the first hour after sunrise; Iceland's long shoulder-season twilight extends usable conditions on either side.
Drive/Hike access. Bring weather-appropriate footwear and check conditions before setting out. The downloadable GPS map puts the waypoint on your phone; your own app routes you to it from wherever you are.
Grjótagjá Cave is best visited during Summer. Outside that window, expect limited access, weather closures, or significantly different photographic conditions.