Grímsnes

Grímsnes is a relatively small fissure or crater row volcanic system located in South Iceland, located south–east of Lake Thingvallavatn and east of the en echelon group of volcanic systems extending across the Reykjanes Peninsula, that erupted last in the Holocene.

You can feel the heat in some spots. A reminder that Iceland sits on one of Earth's most active volcanic zones.

Follow marked paths in active geothermal areas. The ground can be unstable or concealing scalding water beneath a thin crust.