Geothermal activity and natural hot tubs Most of the swimming pools are heated by geothermal energy, natural resource of big importance since ancient times. Reykjavik, the capital of Iceland, even owes its name to the steam of hot springs (smoke, as Ingólfur Arnarson, the first settler called it). Reykjavik literally means “The Bay of Smokes”. … Continue reading Iceland – Geothermal activity