The unusual bog landscape, with enormous peat deposits surrounded by steep mountainsides, makes Reppadalen in Arna an exciting, but little visited tour destination for most of Bergen's inhabitants. Those who live in Arna, however, know to make the most of its beautiful natural splendour.
Some of the giant trees in Hopslia north of Holme Fjord are as much as thirty metres high. Elm and ash are the most common, basswood somewhat rarer. Relatively soft bedrock, good growing conditions and enough light, help them to thrive just here.
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.
In Sanddalen and Helldalsåsen the building of houses has increased dramatically. Where there eariery was grazing land, hundreds of families now live. Not far away, lies Rambjøra as an oasis in the built up area.