QUOTE (Eleanor Rigby @ Jul 26 2007, 6:06 pm)

No, even if you take into consideration any increase in metabolism that definitely will not do it. Even if you spent that half hour cycling, you'd only burn about 250 calories. I love sauna's and believe me if it were that easy, I'd be in them all the time but unfortunately it's not. If you want to burn calories you actually have to get off your ass.
Hmm, nope sorry - biking is my sport - depending on type and workout while biking you can burn quite a bit more; (did you read those links?)
Biking, for me, based on my racing weight (last year - 1 hour)
Exercise Type Calories
bicycling, >20 mph, racing, not drafting bicycling 1260
bicycling, <10 mph, leisure, to work or for pleasure (Taylor Code 115) bicycling 315
bicycling, 10-11.9 mph, leisure, slow, light effort bicycling 473
bicycling, 12-13.9 mph, leisure, moderate effort bicycling 630
bicycling, 14-15.9 mph, racing or leisure, fast, vigorous effort bicycling 788
bicycling, 16-19 mph, racing/not drafting or >19 mph drafting, very fast, racing general bicycling 945
bicycling, general bicycling 630
unicycling bicycling 394
I'm assuming that "you" really meant "one"

I'm ok on the calories side, really. Off my training right now due to a heavy work year and having my weekends screwed by travelling and 3 bikes stolen ... and the nice intro to the German food (just to bring it back on topic)
I don't do Sauna much - once a year or so, and just for the relaxation part.