If you’re looking for the biggest water park in the world, Germany likely doesn’t come to mind. But 30 miles south of Berlin, inside a former airship hangar, which is frosted in snow in the winter, is an unexpected vacation destination. Tropical Islands Resort is the biggest indoor water park in the world, and manages to keep its visitors warm (though not dry) all year.
Click on the link below and check out this awesome water park! The closest military installation is Grafenwoehr Community, approximately 4 hours south.