In Denmark, a 4 hour drive from Hamburg (Germany) you’ll find kitespot Hvide Sande Nord with a small sandy beach. There are a lot of windsurfers at this spot.
You can rent your stuff at Westwind Nord or take a lesson to upgrade your skill. Or just get a bite at the restaurant.
This spot has a free outdoor shower. And you can get a locker if needed.
If the wind is having a break you can always go to the cable park and work on your wakeboard skills.
Park near kitespot Hvide Sande Nord and enjoy the cosiness of this place.
If your planning a roadtrip also check kitespot Klitmøller.