In the area around Tidan you find lake Östen, which is a typical floodplain lake, nutricious and shallow. It is one of the most valuable bird lakes in the country, and a very important link in the chain of resting places for migratory birds. The beautiful landscape around the lake bears evidence from thousands of years of human activity, and here you can also find several ancient monuments and cultural sights. Lake Östen, together with the rivers Tidan and Ösan, has connected large parts of north and east Skaraborg. A lot of the findings that have been made in the area indicates a very rich district. On your visit here, do not miss the ancient monuments Kung Ranes hög and Askeberga ship cumulus, or the cultural reserve Vallby Sörgården.
Vaholms Brohus is a covered bridge across Tidan stream. Technically it is a strut-frame bridge with two spans. It is said to have been constructed in the 18th century, and it is probably Sweden’s only covered bridge. It was renovated in 1992 having been close to collapsing. The Brohus lies on Vaholm Farm, a name that dates back to 1736. Vaholm has been discussed as a possible location of the ancient Vads Royal Demesne, one of the so-called Uppsala “öd” estates. It was this farm which gave its name to the district. The present-day farmhouse is from the beginning of the 19th century, and is today a private residence.