"Iceland’s famous Blue Lagoon is also the site of the incredibly stylish and unmistakably high-end Retreat Hotel. It’s got its own guests-only lagoon, so that you can skip the very busy public pool, as well as a lavish day spa that makes the most of Iceland’s unique volcanic resources. The suites are by a considerable distance the country’s most luxurious, with views of the private lagoon or the lava fields in the middle distance — some even open directly onto the water." - Mark Fedeli