3 Islands to Explore in Viken

Håøya is an island in Oslofjorden in Frogn municipality, Norway.

Kalvøya is an extremely popular destination for both locals and visitors, with boating, swimming, barbeques, sports, etc. The island has several bays with sand beaches with swimming facilities including rafts with diving boards, buoys, climbing frames, toilets, and showers. plays host to an annual soccer tournament for kids and a children's festival and so more interesting things happen here.

Langøyene is an island in Bunnefjorden in the inner part of Oslofjord, in the municipality of Nesodden in Akershus, Norway. It is owned by the municipality of Oslo. Langøyene was originally two islands, Nordre Langøy and Søndre Langøy. The islands were bought by the municipality of Kristiania in 1902, and the strait between the two islands has been filled with garbage deposits.