In 1891, relying on the geothermal properties of the Fluðir region, the Icelanders built a large pool for amateurs with water between 38 and 40°, making it the oldest natural pool in the whole country.
Located in the Golden Circle, 25 km south of Geysir. You have to look for the signs "Gamla Laugin" in the small town of Fluðir.
Secret Lagoon is 100 km from Reykjavík. You have to take road 1 then road 30