Kerið crater was formed over 6,500 years ago after a volcanic eruption. A cone-shaped volcano collapsed after its magma reserve was depleted, creating the crater we see today. Over time, Kerid filled with water, forming a beautiful blue lake within its caldera.
The crater's blue-green waters and red volcanic rock slopes make it an iconic spot. The caldera is 886 ft (270 m) in diameter, with steep walls up to 180 ft (55 m) high!
From the crater rim, enjoy panoramic views of the surrounding landscape and distant mountains on clear days. Then, you can descend for a 20-minute loop hike around the lake to get stunning angles for photos and a close-up view of the crater's blue waters.
In summer, red volcanic rocks contrast with green moss. In winter, you will see snow-covered slopes and a frozen lake.