Norlandsbadet & Spektrum Velvære
Here's a very superior place to relax, tone up and warm yourself if it's freezing outside. Exhaust yourself in its six swimming pools (you can zoom down an 85m waterslide and splosh into one of them) then head upstairs to unwind in its six saunas (the one with therapy music and scents perhaps? Or does eucalyptus vapour tempt?).