Located in Askim, in Indre Østfold, this is one of Norway’s biggest indoor water parks, open all year round, 7 days a week. Wave machine, water slides, kids pool, jacuzzi, heated pool, therapy pool, 25m pool, climbing wall, diving board, plus a spa and solarium, and a cafe on site. Perfect for the whole family on a rainy day. Open until 9pm during the week (10pm on Fridays), and 10am-7pm at the weekend.

Askim town centre. Tel: 69 81 99 00, www.ostfoldbadet.no