Four friends relax at the Blue Lagoon near at Keflavik in Iceland, Polar Regions

iceland reykjavik keflavik geothermal geothermal energy geothermal electricity steam steaming heat hot temperature blue lagoon water hot water bathing tourism swimming swimming pool day outdoors people polar regions power stations swimming pools portraits groups head and shoulders waist up posed posing looking at camera smiling mudpacks health and beauty 25 30 years young man young men young woman young women man men woman women facepacks beauty treatments horizontal