The Retreat provides a unique way to experience Iceland´s ancient bathing culture. The task faced by the architects was to push the boundaries between nature, architecture and experience, to shape a place where guests feel a connection to Icelandic nature. Built directly into a 751-year-old lava flow in the heart of the Reykjanes UNESCO Global Geopark, the Retreat encompasses a subterranean spa, geothermal lagoon and 62-suite hotel encircled by the Blue Lagoon’s seawaters. Treasures of the site — the mineral-rich water, the rugged lava and centuries-old moss — become the focal point of every space in the building.