Secret Lagoon.

Decided to visit the more natural Secret one as opposed to the famous Blue one... weren't disappointed.
Water was a gorgeously warm, the pool had a very comfortable flat gravelly bottom...very nice. Some small areas near the edges next to the little geysers and springs, surrounding and supplying the pool, were far too hot tho. Later we walked past these watching them erupt and bubble at a balmy 100°C plus !

Been exploited as a source of heat and hot water since 1891 when the first thermal bathing pool was built. Been used to heat buildings, bathe, wash, cook and now even grow food in the large complex of greenhouses and on the warmer land.
A beautiful and impressive area to visit...definitely the land of ice and fire... lots more to explore... it's only our second day ❄ 😁