Ljótipollur

Ljótipollur is an explosion crater in the Nature Reserve of Fjallabak and is part of the Veiðivötn volcanic fissure system. It was formed in historical times. Inside the crater, there is a 0,42 km2 and 14 m deep lake. There is trout in the lake but there is no inlet or outlet to the lake, so it is not clear how the fish got there. The naming of the crater translates to "Ugly Puddle" despite the fact it is an incredibly beautiful site.