Open during the summer months only, this public swimming pool right near Vigeland Sculpture Park (somewhere you definitely want to spend some hours during the warmer months, strolling with the family) has two big pools, as well as a children’s pool, water slides and a diving tower. If your kids aren’t likely to swim in the colder waters of Oslo’s rocky fjord beaches, this is a perfect spot to spend some hours splashing around on a sunny day before or after a picnic in the park. Admission is 86 NOK ($14.50) for adults and 40 NOK ($6.75) for kids.