Blue Lagoon

The Blue Lagoon sits in a lava field outside Grindavík on Iceland's Southern Peninsula, built around a geothermal lagoon that's the main draw. The site is set up as a full stop rather than a quick dip: alongside the thermal pool there's a restaurant for meals during a visit and overnight accommodation for those who want to stay longer.

The treatment menu is small, just two offerings, with the signature being Nudd í vatni, an in-water massage priced at $209. This isn't a spa with dozens of add-on services; the lagoon itself is the point, and the single treatment option is built around that setting.

Access is by reservation only, with day passes available for visitors who aren't staying overnight. The property is classified as a luxury-tier spa, and the price point reflects that across entry and treatments. Staff communicate in English and Icelandic, which covers the bulk of visitors arriving from abroad or within Iceland.

Hours run 08:00 to 22:00 every day of the week according to current listings, though it's worth checking the official site before a trip since geothermal spas sometimes adjust hours seasonally. The address is Norðurljósavegur 9 in Grindavík, and the venue can be reached by phone at 420 8800 for booking questions or by checking bluelagoon.com directly for reservations.