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Ulvenvatnet
Lake Ulvenvatnet is thought to be the most species rich wetlands in the municipality. Despite this, the area is not protected, nor is it likely ever to be.
Tyssøy
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.
Lysekloster- The monks and nature
Lysekloster was the largest agricultural property in the country when it was phased out during the Reformation in 1537. In its prime this cloister encompassed two-thirds of all the farms in Os. The monks introduced and cultivated new plant species and it was probably they who stocked the waters with fish not indigenous to the area. This legacy from the Middle Ages has left a lasting mark.
Lysekloster- Mushroom flora
The area around Lysekloster is one of the most popular places in Hordaland for picking mushrooms. The large variety of mushrooms probably stems from the varied, old, cultural landscape which has a lot of open grazing areas and several types of fir- and deciduous forests.