Tom - I see the description "Normally, the answer would be no. But in these very limited circumstances, at Iceland's Blue Lagoon, you can swim in geothermal power plant wastewate" - yet - maybe - but NO = NO NO NO NO NO <b>NO</b> <b>*NO*</b> <b>**NO**</b> - why do I say this - do NOT encourage this in any way, shape or form - where do I start - the water coming out of a power plant is <b>EXTREMELY DANGEROUS</b> - it is not normal water - you will immediately SINK to the bottom - people have DIED swimming in this water - I know - I investigated one of these deaths - someone who IGNORED all the safety warnings - so maybe there is ONE place in the world this is safe - as for the REST - NO NO NO NO NO NO <b>NO</b> - please take this down - do NOT promote this HIGHLY DANGEROUS behaviour in any way, shape or form