I can't think of any place I would rather be on a warm summer day than jumping into the cool clean water of the outdoor pool in Oslo's lovely Frogner Park. You can admire the statues by Gustav Vigeland while dangling your feet in the water, and watching your children splashing about in the children's pool one level down. The pool is a full 50m long and there are also diving boards at 1, 3, and 5 meters. Entry is by single admission or "klippkort". Can't wait to get there!
Frogner Park
Entry to pool on Middelthunsgate, in Majorstuen
Take tunnelbane to stop 5 min walk away.
Google map: tinyurl.com/2wod6kr