In Etne there are no less than four defensive refuges. They are all situated in strategic positions, so that they have served as places of refuge and protection for central parts of the district
At the bottom of Vargavågen on Halhjem lies Grødalshaug, a 30 metres high rocky outcrop between the bay and a moist valley cleft. On the south side of the rock is a steep rock cliff facing the valley, the bog and the stream. On this rock face we find rock carvings from the Bronze Age.
Lysøen, this fairytale castle with its Russian-inspired onion dome on the corner turret, stands as a reminder of the diversity of the period called Historicism and a monument to a versatile artist; a key figure in the Norwegian National Romanticism.