I admit - I'm biased towards this place since I effectively used it as my bath/shower for a period of two weeks last Winter when our household heating system broke down. But it's a better excuse than any!

Holthusen-Bad (or Kellinghusen-Bad) is one of my favorite places to relax. I love swimming during all seasons and Holthusen-Bad offers a nice, affordable range of selections for swimmers and loungers of all persuasions. They have a large heated pool, a wave pool, an outdoor pool and a super-heated mini-pool for relaxing. It costs about 6eu for an hour and a half.

I like that they offer private dressing compartments, which is not something all European spas actually have. If you're not into the European-random-naked-people-thing, Holthusen-Bad offers small compartments in the dressing area. Classy!

my fav. place to go out with my son.
in addition to swimming pool, the bistro here is quite nice.
their french fries and other fried food are not oily or salty.
they also have 3 kinds of alcohol-free beer.