6 Most Unusual Underwater Attractions On This Planet (That You Can Visit)

maldives underwater restaurant 5.8 Hurawahli

Many unusual underwater attractions can be found on this Earth — and they’re not mermaids, giant sea monsters or portals to another dimension (we wish!).

Real, curious interests exist in the depths of the sea, sites that have scientists scratching their heads and snorkelers simply enjoying atypical, subsea fascinations.

From Jellyfish Lake in Palau to Champagne Reef in Dominica, these unusual underwater attractions are incredibly compelling—and travelers can actually visit them. Don your snorkel mask and fins and visit these sites before they become nothing but an underwater myth.

6 most unusual underwater attractions you can visit

1. Jellyfish Lake, Palau

A small number of tourists visit the island of Palau in Micronesia each year.  The big attraction is Jellyfish Lake where allegedly, jellyfish were trapped in the lake when it formed 1,200 years ago. These underwater creatures naturally lost their sting being isolated and protected from predators like turtles, fish and shark.

Pack your swimming trunks. Visitors can swim in the lake with millions of mastiga jellyfish ranging – some as small as the size of a fingertip and others as large as the palm of your hand. It’s an incredibly surreal, awe-inspiring experience worth the long commute to Micronesia (from the United States mainland, the average travel time to Palau is 24 hours!). Sam’s Tours offers excellent excursions to the lake.

2. Road to Atlantis, Bimini, Bahamas

If you’re more of a history buff, head to Bimini, a small island in the Bahamas where American writer Ernest Hemingway boxed locals and wrote part of his novel, Island in the Stream, on the island, located 53 miles east of Miami.

Contrary to what some historians believe, the Fountain of Youth was not discovered in Florida. Spanish explorer Ponce de Leon discovered the fountain, rumored to exist within the woods of South Bimini. Wait there’s more!

The real draw for tourists is Bimini Road aka the Road to Atlantis. Renown psychic Edgar Cayce predicted the road to the Lost City of Atlantis would be discovered in 1968, and sure enough large limestone blocks were found on the ocean floor off the coast of the island. Locals and tourists believe the rocks served as the undersea road to the Lost City of Atlantis and built in a similar formation as the Incan building techniques, while there are numerous skeptics who believe  these are just rocks coincidentally assembled in the form of a road.

Bimini Big Game Club offers diving and snorkeling excursions.

3. Bioluminescent Bay, Puerto Rico

One of the most unusual underwater attractions, bioluminescent bays are rare, but there are 3 in Puerto Rico: Mosquito Bay in Vieques, Laguna Grande in Fajardo and La Parguera in Porta Del Sol. The bays are packed with millions of microorganisms called dinoflagellate — half-plant/half-animal species — that glow when they feel threatened or in danger.

While swimming in these bays has been a pastime for tourists, the Department of Natural and Environmental Resources has mandated that tour operators do not allow swimming in the bays to preserve their current state. Satisfy your curiosity to see the magical neon glow and head to La Parguera.

Book affordable luxury tours to Bio Bay here.

4. Underwater Post Office, Vanatau

When traveling to Hideaway Island marine sanctuary in the island nation of Vanuatu – located in the South Pacific Ocean, visitors can snorkel, swim, cruise in a glass-bottom boat or even send a postcard from underwater! The world’s first underwater post office is just 10 feet below the ocean’s surface, making it easy for swimmers and snorkelers to send waterproof postcards  Instead of regular stamped ink, the post office has developed pre-paid post cards that are embossed when sent, and you definitely won’t worry about extremely long lines at this unique post office.

Click here to book amazing excursions to Underwater Post Office, one of the most unusual underwater attractions!

5. Champagne Reef, Dominica

Located in the Caribbean, Dominica in the Lesser Antilles of the Caribbean is known for Boiling Lake — a flooded hole opening near a volcano –; the natural sulfur springs at Wotten Waven; and Champagne Reef located on the island’s coast.

Champagne Reef gets its name from the thousands of tiny bubbles that continuously emerge from vents in the ocean floor, spiraling upward like a glass of champagne. Thanks to the island’s geothermal activity, the warm gas emissions create an environment for interesting sea life, including seahorses and frogfish.

This natural phenomenon truly serves as an unusual underwater attraction and treat for both divers and snorkelers. Click here to get an amazing snorkel and dive tour to Boiling Lake!

6. Great Blue Hole, Belize

Divers are attracted to many blue holes found around the world, including the Bahamas and Australia. Among the most unusual underwater attractions, The Great Blue Hole at the Lighthouse Reef Atoll in Belize, is the most popular blue hole. It’s part of the Belize Barrier Reef Reserve System and it’s a UNESCO site.

Blue holes are circular, steep-walled depressions or, large sinkholes in the middle of the ocean, which makes them amazing to look at. Blue holes were created in the Ice Ages when sea levels were lower and slightly acidic rainwater dissolved the carbonate bedrock, forming the sinkhole we see today. It’s a fascinating underwater attraction, also also thrilling when observed from an aerial view.

Book all your Belize adventures here!

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Jimmy Im has traveled to 113 countries, stayed in over 600 hotels and has flown a million airmiles. He lives in New York City.

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