One of Dubai’s most iconic resorts, Atlantis, The Palm, is home to a three-story underwater suite. (The master bedroom’s floor-to-ceiling windows look directly into the Ambassador Lagoon aquarium.) Starting from around $5,500 per night, the suite includes 24-hour butler service and full access to the resort’s myriad attractions. One such attraction, the Lost Chambers Aquarium, hosts underwater yoga, pilates, and meditation classes, with a backdrop of 65,000 marine animals.

The resort’s newest underwater thrill is the Aqua Trek Xtreme experience, in which intrepid explorers descend a ladder 10 meters to the bottom of the Ambassador Lagoon, while wearing an Aquatrek helmet. Once guests reach the bottom, they embark on a guided underwater walking tour of one of the biggest open-air aquariums in the world, coming face-to-face with sharks, stingrays, and schools of multicolored fish.

Resort World Sentosa, situated just off the coast of Singapore on the island of Sentosa, offers 11 two-story Ocean Suites with direct access to the resort’s massive aquarium. Each unit includes a scenic outdoor patio and Jacuzzi on the upper level, with underwater views of the aquarium’s 40,000 fish on the lower level. A daily highlight is feeding time, when guests can watch as divers go below the surface to interact with marine life.