Inside the walls of Vaxholms kastell , you Vaxholms kastell party and conference facilities, as well as Vaxholm Fortress Museum and activities such as Prisoners at the Castle, Team Competition, and Castle Escape. In the summer, you can grab a bite to eat at Bistro Kastellet & Sjöboden.

The island of Badholmen also belongs to Kastellet. During the summer, the beach club "Badholmen Sju veckor" opens there. All year round, the island is also a popular venue for weddings and other celebrations.

Vaxholms kastell open to the public during the summer and for conferences, events, and booked groups year-round.