The inviting 40°C waters of Iceland’s Blue Lagoon are lent their otherworldly shade of turquoise thanks to a chalky white silica floor – a stunning sight to behold. But unrestricted access to these geothermal sea waters is more privileged still, and such is the case at just one incomparable establishment: the Retreat Hotel. Intended as a seamless continuation of the incredible grey solidified lava field that surrounds it, 62 suites are built into the rock with views of the lagoon and mossy landscape that rises beyond. Floor-to-ceiling windows afford arresting panoramas, from rooms furnished in natural wood, slate coloured walls and a contemporary, minimalist air.
Serenity pervades the entire property, nowhere more so than its subterranean spa, with lava spring, steam cave and private Lava Cove spa suite. And for a seriously remarkable massage, there’s the opportunity of floating on the lagoon itself for the duration.