Caribbean Bay, 310 Jeondae-Ri, Pogok-eup, Cheoin-gu, Yongin-si, Gyeonggi-do, South Korea; +82 2 759 1940 7
Siam Park (Tenerife, Spain)
Siam Park is a Thai-themed water park on the island of Tenerife.
The park's most popular ride is the 91-foot-high (27 meters) Tower of Power, on which riders plunge down a vertical drop before shooting through an aquarium filled with stingrays and sharks.
A lazy river and surf lessons in the park's wave pool offer slightly more sedate activities.
Siam Park, Avenida Siam Park, Costa Adeje, Santa Cruz de Tenerife, Spain; +34 902 060 000
Tropical Islands (Krausnick, Germany)
Housed inside the largest free-standing hall in the world -- the structure was originally built as a hangar for dirigibles -- Tropical Islands can accommodate 6,000 visitors a day and has one of the world's largest indoor pools, measuring 656 feet (200 meters) in length.
Away from the water, there's a rainforest with 50,000 plants, a hotel and a nightclub. It's even possible to go for a balloon ride -- all without stepping outside.
Tropical Islands, Tropical-Islands-Allee 1, Germany; +49 35477 605050
Watercube Waterpark (Beijing)
All of the rides at Watercube Waterpark were designed overseas and shipped in.
Highlights include the funnel-shaped Tornado ride, Aqualoop slide and Bulletbowl, where riders shoot down an enclosed slide into a huge bowl.
Visitors should keep an eye out for the enormous jellyfish and clouds of bubbles suspended from the ceiling.
Happy Magic Watercube, Olympic Park, BeiChen Road, Chaoyang District, Beijing; +86 010 8437 2030
WaterWorld Waterpark (Ayia Napa, Cyprus)
Foam parties aren't the only way to cool off in Ayia Napa.
The WaterWorld Water Park has a Grecian theme, with lots of pillars and Trojan horse-shaped monuments.
Poseidon's Wave Pool has Greek ruins, geysers and shipwrecks, the River Odyssey lazy river has crumbling stone pillars and the vertigo-inducing Drop to Atlantis shoots riders out of an enormous Roman temple.
WaterWorld Waterpark, 18 Ayia Thekla Road, Ayia Napa, Cyprus; +357 23 724444
Wet 'n Wild (Orlando, Florida)
Visitors are spoiled for choice at Wet 'n Wild.
In addition to various scream-fest water rides, there's a huge sandcastle-themed children's area (reportedly the largest family water play area in Florida), a wave pool and lazy river.
One the most popular rides is Disco H20. Passengers on this four-person tube ride float along to a soundtrack of 1970s hits accompanied by disco balls and flashing lights.
Wet 'n Wild, 6200 International Drive, Orlando, Florida; +1 407 351 1800