Clouds of steam rise as people swim in the Blue Lagoon thermal pool, Iceland

ablutions aquatic arctic bathing extremes of temperature health health spas health treatments healthy heat hot air humidity icelandic spas steam steaming towers testing the water thermal pools water treatments daytime exercise exercising horizontal keeping fit leisure activities outdoors outside relaxation relaxing stock image stock photo stock photograph swimming swimming pools travel photo travel photograph travel photography travel stock travels waters travel travel destinations travel destination travel experience color image color colour tourism destination