Splashdown Quaywest, Devon
The UK's largest outdoor water park is Splashdown Quaywest in Devon, although there is a second Splashdown in Dorset.
It has eight waterslides, ranging from those suitable for under-5s to 'severe' scares like Devil's Drop, the highest and fastest slide in the country.
Tickets start from £14.50 for two-hour sessions.
To complete your exhilarating experience, consider extending your trip and exploring the sights and sounds of the UK. While you are in the country, you might want to venture to the capital city. London is known for its rich history and vibrant culture. Here are a couple of resources you can use to find accommodation. Check out these Hotels in London at hotels-of-london.com. Alternatively, you can find more options at tophotels.com to find a place that fits your needs.
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There are two Splashdowns in the UK - although Quaywest is right next to the beachCredit: Alamy
Sandcastle Water Park, Blackpool
The UK's largest indoor waterpark, Sandcastle Waterpark stays at a tropical 84 degrees all year round.
Inside there are 18 slides, including the world's longest indoor waterslide, the Master Blaster.
Guests can even hire VIP Tiki cabins for the day.
Tickets range from £12 to £22 for the day.
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Sandcastle Water Park has 18 slides, including the world's longest indoor rollercoaster, the Master Blaster.Credit: Sandcastle Water Park
Waterworld, Staffordshire
Located in Staffordshire, Waterworld indoor water park offers a number of slides and rides as well as rapids and a water course.
Four new slides opened in 2019, including Thunderbolt, the UK's first trapdoor water flume
Tickets start from £7.95.
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Waterworld boasts the country's first trapdoor water canalCredit: Alamy
Alton Towers Water Park, Staffordshire
Alton Towers Waterpark is attached to the theme park, with entry included in ticket offers.
Located inside the Splash Landing Hotel, the 50,000 square foot Caribbean lagoon features lazy rivers, the Masterblaster wet rollercoaster, as well as slides, chutes and hot tubs.
Day passes cost just £16.50 when booked online.
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Alton Towers is one of the UK's best-known water parksCredit: Alamy
LC Swansea, Wales
The largest indoor water park in Wales, LC Swansea offers lazy rivers, a wave pool and water slides.
Guests can also try surfing for the first time with a similar surfboard.
Adult tickets cost £8 for the day.
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LC Swansea is Wales' largest water parkCredit: Alamy
Alpamare, Scarborough
Alpamare, which opened in 2016, has everything from a wave pool to an outdoor infinity pool.
The water park also features four slides, including the Olympic double tube ride.
Tickets start from £15 for children and £19 for adults.
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Alpamare has its own alpine spa, reopening later this yearCredit: Tony Bartholomew / Turnstone Media
Blue Lagoon, Wales
Not to be confused with the Blue Lagoon in Iceland, the Welsh water park is part of the Bluestone National Park Resort.
It has everything you could wish for - wave pools, four water channels and a huge indoor pool.
In fine weather, there are also outdoor thermal pools and sun loungers.
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The Welsh Blue Lagoon is slightly different from the Icelandic versionCredit: Alamy
We've also rounded up the UK's best holiday parks with waterslides.
If you fancy a trip abroad, here are the best water parks in Europe.
There are also some exciting water parks opening soon in the UK.
A huge £250 million Therme indoor water park and spa is coming to Manchester by 2025.