Your eyes do not deceive you: These colossal hotel swimming pools are as gigantic as they look. They are each property’s main attraction, letting swimmers, divers and paddleboarders live out their aquatic fantasies. Some are historic, some are modern wonders; all are architectural marvels.
The Biltmore, Coral Gables, Florida

Guests have been diving into The Biltmore’s massive pool — it covers 23,000 square feet and holds 600,000 gallons of water — since 1926. Surrounded by “grand Mediterranean architecture and classical statues,” the pool is an opulent spot for “doing laps or having a leisurely float,” said Secret Miami. Esther Williams once used it as her stage, putting on aquatic shows before starstruck crowds, and Tarzan himself, Johnny Weissmuller, spent time here as a swimming instructor.
Diamante Cabo San Lucas, Mexico
Spanning 10 acres, the saltwater Crystal Lagoons pool offers something for everyone. Guests can go swimming, sailing, kayaking and paddleboarding, stopping whenever they’d like for a refreshing drink at the swim-up bar. While lounging poolside, you can soak up views of the Pacific Ocean and the sand dunes of the Diamante Golf Club, ranked by Golf Digest as the top course in Mexico.
Fontainebleau Las Vegas, Nevada
Fontainebleau Las Vegas’ six-acre Oasis Pool Deck fits right in with the city’s “glitz and glamour,” said Time Out. Take your pick from seven different pool experiences, like hanging out at the “high-energy” LIV Beach day club or relaxing in the blissful La Mer enclave.
On certain nights, the Oasis Pool Deck turns into an outdoor theater, with “Black Panther,” “The Secret Life of Pets” and other popular movies screened poolside. Swimming is not only allowed during the movies but encouraged.
Marina Bay Sands, Singapore
Think of Singapore, and its distinctive Marina Bay Sands hotel will likely come to mind. The property — three towers with a rooftop infinity pool “balanced” across the 57th floors — is a “fixture of every postcard rack and travel brochure,” said Travel and Leisure.
The swimming pool is part of Marina Bay Sands’ claim to fame: At 492-feet long, it’s the world’s largest infinity pool. Only open to hotel guests, the views from the deck are phenomenal, and it’s “obligatory” to take a selfie with the skyscrapers behind you.
The Oberoi Udaivilas, Udaipur, India
At the “glamorous” Oberoi Udaivilas, the long pool that stretches past its suites is an “architectural work of wonder,” said Condé Nast Traveler. Guests can slip into the water from their patios or relax on a lounger, gazing out at the pool “sandwiched between views of the garden and ocean.” For the ultimate stay, book one of the extravagant accommodations that comes with its own private pool.
Perfect Day at CocoCay, Bahamas
There’s only one way to get to Oasis Lagoon, the Caribbean’s largest freshwater pool, and that’s by Royal Caribbean ship. Oasis Lagoon is located on a private island used exclusively by the cruise line and caters to all interests.
Families usually stay in the far end of the pool, with its “sloping entry and gentle fountains,” while adults in party mode assemble by the swim-up bar, said The Points Guy. There are “numerous little nooks” where you can find “in-the-water seats” and “undulating loungers in the shallows.”
San Alfonso del Mar, Algarrobo, Chile
To see San Alfonso del Mar’s “jaw-dropping” swimming pool is to believe it, said Islands. The 3,000-foot-long pool holds 66 million gallons of water and is a “breathtaking feat of craftsmanship.”
When the property opened in 2006, it earned the Guinness World Record title for largest swimming pool on Earth, overshadowing even its closest competition. Today, it’s the “perfect” playground for sailors and kayakers, with a sustainable filtration system that “minimizes energy use” while ensuring water remains in “crystal-clear condition.”
The bigger the pool, the bigger the splash
