Hot springs in Iceland

Iceland has both naturally occurring geothermal rivers and pools (like Landmannalaugar, Reykjadalur, and Seljavallalaug) that are free and completely wild, and commercially developed lagoons (like the Blue Lagoon, Sky Lagoon, and Myvatn Nature Baths) that charge entrance fees and offer facilities. The wild pools require more effort to reach but offer a more authentic experience.

The Blue Lagoon is not a natural hot spring. It was formed accidentally in 1976 from the mineral-rich runoff water of the Svartsengi geothermal power plant. However, the silica and sulfur-rich water does have genuine therapeutic properties, and the setting inside a lava field makes it a unique experience despite its industrial origins.

Iceland's hot springs can be visited year-round, but winter (November to March) offers the most dramatic experience, especially for outdoor pools where you can soak under the Northern Lights. Summer (June to August) gives access to remote highland springs that require 4x4 vehicles on F-roads. Spring and autumn offer smaller crowds at the popular commercial lagoons.

A rental car is strongly recommended for visiting most Icelandic hot springs outside Reykjavík. The Blue Lagoon and Sky Lagoon are accessible by bus from the capital, but wild springs like Landmannalaugar, Hveravellir, and Fosslaug require a 4x4 vehicle and are only accessible in summer. Many rural pools are completely off public transport routes.