When the mercury rises, travelers love to know that a great (and even decadent) swimming pool awaits them. And while most hotels and resorts have a pool (or several), some are simply way cooler than others. Here are 20 top places to plunge.
BEST EDGY BEACH RETREAT: EL GANZO
San Jose del Cabo, Mexico
Be among the first to lounge on the rooftop sanctuary at El Ganzo, a recently opened 72-room boutique hotel in San Jose del Cabo. Featuring a 2,013-square-foot infinity edge pool with a glass-walled hot tub, the terrace also has an intimate sushi restaurant, Balinese daybeds, and an indy music mix, some of it recorded in the hotel's subterranean studio. Rooms from $193/night
BEST URBAN TANNING: DREAM DOWNTOWN
New York, NY
What you need to know about the pool at 316-room Dream Downtown, in NYC'sMeatpacking District: It's slender and compact, but its glass-bottom portholes mean your strokes can be seen by folks in the lobby and the hotel's shiny metal façade means you'll need to apply SPF or risk end up looking like the Tanning Mom. Rooms from $395/night.
BEST ROOFTOP SANCTUARY: B2 BOUTIQUE HOTEL + SPA
When it's cool or downright cold for two-thirds of the year, the water better be hot. In fact, it's a steamy 100+ degrees at the Thermalbad & Spa atop Zurich's 60-room B2 Boutique Hotel + Spa. A former brewery, the industrial-chic hotel partnered with the spa (there's also a subterranean thermal circuit) and guests can saunter on up for a soak with a view. Rooms from $345/night.
BEST ADRENALINE RUSH: HOLIDAY INN SHANGHAI
Guests swimming laps in this distinctive 98-foot-long pool at the 390-room Holiday Inn Shanghai Pudong Kangqiao are in for an unexpected view: nothing but air as the glass-bottomed pool cantilevers out over the street 24 stories up! Clearly this is not the Shanghaipool for travelers with a fear of heights. Rooms from $96/night.
BEST FAMILY FUN: AULANI-A DISNEY RESORT & SPA
Kids don't relax by a pool—they attack it. So it's important for parents' peace of mind to make sure a resort's pool has all the necessary bells and whistles. The Waikolohe Valley water zone at 359-room Aulani-A Disney Resort & Spa on Oahu has two tubing streams, an 8,200-square-foot zero-entry pool with a tunnel slide, an interactive water play area, and four whirlpools (for Mom and Dad). Rooms from $434/night.
BEST POOL FOR TWO: JADE MOUNTAIN
Lots of resorts have suites with private plunge pools, but none are as jaw dropping or as dramatic as the 25 "sanctuaries" at Jade Mountain, where each open-air suite features an infinity edge pool located steps from a romantically draped bed and overlooking St. Lucia's tropical paradise. There's also a communal pool on the resort's rooftop, but...why? Rooms from $1,150/night.
BEST PANORAMA: FASANO RIO
Rio de Janeiro, Brazil
What's better than being on famed Ipanema Beach in Rio? Being eight stories above it in the rooftop pool at 89-room, Philippe Starck-designed Fasano Rio. An all-day bar and dining menu complements spectacular views of sea and sand—plus iconic Corcovado and the Two Brothers peaks. Rooms from $795/night.
BEST OLD-SCHOOL POOL: THE BILTMORE HOTEL
Coral Gables, Florida
One glimpse of the Mediterranean-inspired circa-1926 Biltmore Hotel in Coral Gables and you know there's going to be a pretty impressive pool somewhere on its 150 acres. And there is: the country's largest swimming pool, which is a vast blue watery oasis worthy of a choreographed Busby Berkley aquatic performance. Rooms from $229/night.
BEST NATURE LOVERS' DIP: FOUR SEASONS SAFARI LODGE SERENGETI
The sleek infinity edge human "watering hole" at the new 72-room Four Seasons Safari Lodge Serengeti in Tanzania is just yards from the real deal: a shallow mud pool where elephants and other animals gather. It also faces west, making for unforgettable vistas as you sip sundowner cocktails. Rooms from $890/night, including meals.
BEST JETSETTER SUN SPOT: HOTEL DU CAP-EDEN-ROC
Cap d'Antibes, France
The pool at one of the most celebrated luxury hotels on the French Riviera is literally a blast; it was created almost 100 years ago using dynamite to gouge out the basalt rock. Today the 118-room Hotel du Cap-Eden-Rocis a favorite of jetsetters and movie stars, especially during the Cannes Film Festival. Rooms from $1,042/night.
BEST ZEN: UBUD HANGING GARDENS
Anyone who's been to Bali knows this Indian Ocean island's dichotomy: a mind-blowing mix of sputtering scooters and soulful spirituality. It's easy to channel the latter at these tranquil twin infinity edge pools at 38-villa Ubud Hanging Gardens, which hover over peaceful jungle foliage and rice paddies. Rooms from $360/night.
BEST EXOTIC PLUNGE: QASR AL SARAB DESERT RESORT BY ANANTARA
Abu Dhabi, United Arab Emirates
By day, the spectacular freeform pool at 206-room Qasr al Sarab Desert Resort by Anantara, located in the Liwa Desert about 90 minutes from downtown Abu Dhabi, offers stunning views of golden-hued sand dunes. After dark, the sky's the limit as you float and gaze up at twinkling galaxies far, far away. Rooms from $313/night.
BEST PINCH-ME-NOW POOL: INTERCONTINENTAL TAHITI
Most travelers zip through Tahiti's gateway city Papeete on their way to Bora Bora or Moorea, but here's a good reason to spend a night or two: the blissful view from the sand-bottom Lotus infinity pool at the 257-roomInterContinental Resort Tahiti, with its swim-up bar and endless panorama of blue. Rooms from $232/night
BEST COASTAL HIGH: POST RANCH INN
Big Sur, California
Proof that good things come in small pools is right here at 39-room Post Ranch Inn, where this at-first-unimpressive pool mesmerizes you as you swim to the edge and have a look. You'll gaze straight down on grassy, rocky 1,200-foot cliffs to ogle the beautiful Big Sur coastline. Rooms from $800/night.
BEST MYTHICAL SWIM: PERIVOLAS
There's no better place to sun, swim, and daydream about Zeus, Aphrodite, and Poseidon than at the oft-photographed infinity pool at 17-suite Perivolas. Located inSantorini's idyllic cliff-side town Oia (pronounced ee-ahh), it features seductive whitewashed Cycladic architecture. Rooms from $704/night.
BEST THEME PARK SPLASH: ATLANTIS
Paradise Island, Bahamas
Sometimes a pool is more than just a place to cool off—it's a wild water slide through clear plastic tunnels with sharks on the other side or a thrilling tube ride through rapids. You'll enjoy all that and more amid the 141-acre Water Park at 2,317-room Atlantis on Paradise Island. Rooms from $299/night.
BEST ADULT POOL PARTY: WET REPUBLIC AT MGM GRAND
Las Vegas, Nevada
Not just a pool, but rather an "ultra pool," the 53,000-square-foot adult playground (complete with celebrity DJs and bottle service) at the 5,000+-room MGM Grand Hotel & Casino in Las Vegas features a "poolscape" with party cabanas, in-pool splash dancing, and a dress code (guests are requested to wear "fashionable swim wear"). Rooms from $70/night.
BEST PALATIAL PLUNGE: OBEROI UDAIVILAS
You'll feel like royalty at 87-room Oberoi Udaivilas in Udaipur no matter which pool you choose: the dramatic Escher-esque main pool, the serene spa pool with its graceful arches, or the semi-private pool accessible if you book a lake view room. Rooms from $750/night.
BEST MOUNTAIN HIDEAWAY: AMANGANI
Jackson Hole, Wyoming
Perched at 7,000 feet and facing the majestic Grand Tetons in Jackson Hole, the heated 115-foot-long pool at 29-suite luxury enclaveAmangani lets guests enjoy a relaxing dip with a jaw-dropping view no matter what the season. Rooms from $725/night.