The water stays around 38-40 degrees C all year round. Kerid is a volcanic crater located Grímsnes area in south Iceland. It is considered one of the most geological wonders in the country.

Explore nature's masterpieces with our guide to seven spectacular crater lakes with breathtaking views and fascinating ...

Kerid, a colorful red-earth volcanic crater; and a two-hour stop at the heated waters of the popular Blue Lagoon. This two-day tour visits the most popular region of Iceland, the South Coast.