Svartagil
- Location
- Mosfellsbær, Iceland
- Water type
- silica
- Temperature
- 39 °C
- pH
- 8
Water profile
Relaxing — deep, immediate muscle release.
Rich in trace elements — gentle on the skin.
Soft water — natural, classic buoyancy.
Svartagil ('Black Ravine') near Mosfellsbær, just outside Reykjavik, is a small natural silica-rich hot spring set in a basalt ravine where geothermal water trickles into a modest pool in a wild setting just minutes from Iceland's capital — a reminder that Reykjavik is surrounded by one of the most geothermally active landscapes in the world. The spring's location within easy reach of the capital makes it a popular spot for local Reykjavik residents seeking a quick wild hot spring fix in nature, though its modest size and informal character keep the experience intimate. Iceland's capital is uniquely positioned within a geothermal environment of extraordinary richness — the Reykjanes Peninsula, Blue Lagoon, Krýsuvík solfatara, and numerous wild springs all lie within 30 kilometres of the city centre, giving Reykjavik residents unparalleled access to volcanic thermal landscapes.