That Blue Lagoon experience sounds awesome, I'm going to put that on my "to do's I hope to get to one day"
I've always loved the cold water dips after a sauna or steam session (haha, it is weird not writing steem). I was actually surprised by how many people were doing it. Lots of guys and ladies went for the dunk. There were a few screams from the ladies though. Fortunately there's always a sauna nearby to retreat to.