B.E.Bendixen, who has written about “The Churches in Søndre Bergenhus Amt”, believed even around 1900 that there was evidence at Tyssøy of the church or the chapel of the Holy Ludvig (Louis). Two large stone blocks had lain in the western wall of the church’s nave, and this wall showed a length of 16 meters in the terrain.
"One of the big scientific sensations", was the title in the Bergens Times newspaper on the 22nd of November, 1941. It was the geologist Isal Undås who had been interviewed by the newspaper. He thought that he had discovered a 120 000 year old whale bone, remains of life from before the last Ice Age.
The large coastal waves that crash down on the islands west in the sea gather their energy from storms and winds all the way out in the North Atlantic Ocean. The most common place of origin is nonetheless the North Sea. When these waves break over the skerries and islets along the shore, or on the rocky outermost islands, their energy is released. This takes the form of turbulence in the water and sea spray up on land. Can the enormous energy contained in the waves be exploited?
The 28th November 1914 was a day to remember for the Os inhabitants. This was the day they could turn the switch on the wall and have electric light in their houses. It was like opening the door on the future when the power station at Gåssand was put into operation.