Went to Amsterdam after new year, having a stopover at Schipol. Went to Sport Hotel Zuiver's spa - highly recommended, not much modesty, a surprising number of americans and overall a really nice spa. Stayed in the indoor whirlpool much of the time, its well lit and the scenery interesting. Only regret is coming so late on a friday, I thought it'd only fill up after work, but it seems there are a lot of visitors all day long. Mostly a pretty young crowd.
(Stricktly not Germany though, I'm aware of that. Pls delete my post if you think its off topic

)