There are usually quite a few people on the Weiße Düne from September to April.
From November to April the water at Weiße Düne is too cold to swim in.
From July to January Weiße Düne has rainy season. This is something to keep in mind when planning your trip since it is quite possible that you may be unable to sunbathe.
Diving
Kiting
Surfing
Windsurfing