The Myvatn Nature Baths are a little different to Blue Lagoon, similar silica waters, but not as dense, and not quite as warm, or at least not so on the day i visited.
Similar experience, pay, go shower and put stuff away in a locker, then enter the Baths to find underwater seating area’s and various places to relax.
Biggest difference is the Nature Baths are elevated from Lake Myvatn, so there is quite a lovely view from the edge of the baths over the lake and landscape beyond.
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