There is a great deal of geothermal activity in the area, as the Reykjanes peninsula sits on top of the plate boundaries of two tectonic plates and as there is only a short distance to underground magma sills. Through the years, residents of the peninsula have taken advantage of such geothermal activity, such as for teaching people to swim, being able to swim, moreover, is af great importance for the residents of an island where fishing is such an important aspects of the nation’s economy.

The Valborgarkelda (Valborg pool) used to contain warm seawater due to the said geothermal energy. Ólafur P. Sveinsson, a former lighthouse keeper in Reykjanes, built a swimming pool in the fault during 1925 – 1930. He dynamited lava outcropping to make it easier for warm water to flow into the fault. He then built a stone wall out of dolerite and created steps down into the water. A roof . . .  get all the info at: https://www.patreon.com/RafnSig

Check out:  Fimmvörðuháls Volcano

Subscribe to my Youtube Channel

You can buy this and other photos at my Icelandic Stock Photo Web: IcelandStockPhotos.com