Lake Arnarvatn has and area of 0,14 kmē and is situated 36 m above sea level. Lake Grafarvatn: 0,42 kmē / 32 m. The lakes are connected by a brook and the fishing spots are not accessible by car.

From the farmstead Grof, the walking distance to lake Grafarvatn is 3-400 m. The lakes abound in the finest lake char and brown trout, 3-4 pounders.

The distance from the capital is about 715 km and 17 km from Egilsstadir.