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Kerið is a striking volcanic crater lake located in South Iceland, often included as an extra stop on the popular Golden Circle route. Formed around 3,000 years ago, Kerið is part of a row of craters known as the Tjarnarhólar crater group. Unlike many other volcanic craters in Iceland, Kerið is known for its vivid colors: steep red and black volcanic slopes surrounding a deep lake that shines in shades of turquoise and emerald.
The crater is about 55 meters deep, 170 meters wide, and 270 meters across, making it easily accessible for visitors. A walking path circles the rim, offering stunning views of the crater and the surrounding countryside, while a trail leads down to the lake itself, where you can stand at the water’s edge. The lake’s depth varies with groundwater levels, but its bright color and peaceful atmosphere remain a year-round attraction.
Kerið is unique because, unlike most volcanic lakes formed by explosive eruptions, it was created when a magma chamber collapsed after an eruption, leaving behind the dramatic crater basin we see today. Its unusual geology, striking beauty, and accessibility make Kerið a must-see for travelers exploring Iceland’s volcanic landscapes.