Alrekstad (later Årstad) is the birthplace of Bergen. The estate was an estate for Harald Hårfagre and several of his descendants: Eirik Blodøks, Håkon den gode og Olav Tryggvason. These first kings moved with their courts and guardsmen from estate to estate. From these estates the king ruled the country.
Where the school and the sports facility lie at Eidsbøen there was previously a bog surrounded by small hillocks. More than 1000 years ago this was a holy place, where the dead were buried.
Yddal is one of the biggest and finest pine forest areas in the county. The rich forest resources provided an important foundation for the settlement of Yddal. Up until about the 1950s, there were three farms here. Where the lumberjacks couldn't get to, the trees grew very big and can be over 300 years old.