Kilen Sjøflyklubb is a long-established seaplane club based at the Oslo Seaplane Base in Fornebu and has operated from Kilen since the 1920s. It offers training and checkouts for seaplane pilots as well as sightseeing flights over the Oslo Fjord.
For student pilots, the club emphasizes seaplane handling, water operations, navigation, safety, and local procedures. It also provides information for visiting pilots, fuel availability, and club membership.