Lake Hredavatn has an area of 1,14 km²,
lies 56 m above sea level and its greatest depth is 20 m. Its discharge
is Hrauna, which mainly runs under the lava field Grabrokarhraun. The
lake is situated a short distance from road nr. 1. The number of permits
is not limited. The catch consists mainly of lake char and some brown
trout, mostly ½-2 pounders. The surroundings of the lake are extremely
beautiful and offer a few possibilities for hiking to charming
spots such as the crater Grabrok (view),
the waterfalls of the fine salmon river Nordura and the lava spot
Paradise near the river. According to the legends some
mysterious animal or monster occupied the lake, but is rarely to be seen nowadays.
The distance from the capital is 107 km by the Whale Bay tunnel and 33
km from Borgarnes.