What if you could book your own, private island? Well… you can, kinda. Essentially a three-story, private, floating island in the midst of the Zanzibar archipelago, The Manta Resort features everything from a perfect sunbathing deck, open-ocean swimming, and a bedroom submerged 13 feet below the ocean.

Located 30 feet deep in the murky Emerald Lagoon, guests at the Jules’ Undersea Lodge must scuba dive just to reach their bedroom. Can’t scuba? No worries – you can book a scuba crash-course at check-in. Formerly an underwater research laboratory, the retreat's 42-inch submarine-inspired window overlooks an aquatic nursery.

Submerged 16 feet beneath the Indian Ocean, the entirely glass-walled Conrad Maldives Rangali Island Resort is a hotel fully encapsulated by warm blue seas, and where guests experience 180-degrees of panoramic ocean vastness. Oh, also, whale sharks may watch you as you eat dinner – no big deal.

The underwater and floating hotel project known as Reefworld bobs 40 nautical miles off Airlie Beach, near Australia’s famed Great Barrier Reef. The pontoon features amenities like glass-walled rooms, scuba diving, and even helicopter tours, guests can endlessly gaze at the vivid creatures clinging to the thousands of individual reefs nearby.

Equipped with a butler, private chef, and a sensual copy of Barry White’s Greatest Hits (that’s not even a joke), The Lovers Deep submarine wants guests to explore the motion of the ocean in more ways than one. Surrounded by the vibrant colors of coral and voyeuristic angelfishes, lovers can enjoy an aphrodisiac-filled menu of oysters becoming members of the exclusive Mile Low Club.

Fiji's Poseidon Undersea Resort could be either a huge human fishbowl in the ocean, or it’s a former James Bond lair. Set at a depth of 40 feet in the Pacific, Poseidon Undersea Resort will supposedly feature 22 guestrooms, an underwater restaurant and bar, a library, a wedding chapel, a spa, and maybe – just maybe – a 1977 amphibious Lotus Esprit… for Bond, of course.

Costing $550 million, the first proposed underwater hotel in Dubai, known as Hydropolis, has been postponed indefinitely due to technical difficulties. Apparently engineering an underwater metropolis is challenging. The hotel’s expected to reach a depth of 65 feet and include amenities like a spa, movie theater, ballroom, and bars.