The Blue Lagoon in Iceland is a must-visit destination for its beautiful milky blue water and luxury spa treatments. This geothermal pool within the UNESCO Reykjanes Peninsula draws its water from a nearby geothermal power plant, and offers visitors an opportunity to relax and soak in the waters that are full of mineral goodness. For ultimate indulgence there is a private Retreat Lagoon, with access to a private Retreat Spa and changing suite, and the signature spa therapy—The Blue Lagoon Ritual. Visitors can enjoy smoothies at the In-Water Bar, and admire the stunning surrounding scenery. With the added bonus of being situated between the capital Reykjavík and Keflavík International Airport, it's no wonder why The Blue Lagoon is one of Iceland's top spots to visit.