Bathing in Oslo

Sognsvann (or Sognsvannet) is a 3.3 km circumference lake just north of Oslo, Norway.

Bogstadvannet () is a lake between the city of Oslo and the municipality of Bærum, Akershus, Norway. It is part of Sørkedalsvassdraget, which in turn is part of Oslomarkvassdraget. thumb|200px|left|View of the manor from the lake during winter Originally, the lake was named Få(d)vannet after an earlier name for Lysakerelven, but has since taken the name of the Bogstad estate and manor, on the east shore of the lake. In addition to the manor, Norway's first 18-hole golf course (from 1924) is owned and operated by Oslo Golfklubb on the south shore and a large camping ground (Bogstad Camping) on