Halsnøy Monastery is situated in the midst of the lush fjord country in Sunnhordland, on one of the old spits, or “necks”, that has given name to the island. Gently sloping fields lead down to the sea on both sides, in the south towards the Kloster Fjord, to the north towards the sheltered Klostervågen.
Below a south facing, steep rock at Årsand, there is one of the strangest ancient relics in the whole of Hordaland. The jutting rock wall forms a shallow flagstone – Geithilderen. Parts of the rock wall are covered by a light lime crust and on the crust figures have been painted in golden and rusty red colours.