Looking for the perfect way to cool off this summer? From adrenaline-pumping water coasters to relaxing lazy rivers and huge indoor tropical lagoons, the UK is home to some fantastic waterparks. Whether you're adding an extra day onto a theme park holiday or planning a dedicated family splash adventure, here's our guide to the very best waterparks across the country.

At a glance

Waterpark Best for Indoor / Outdoor
🌴 Alton Towers Waterpark Resort holidays Indoor & Outdoor
🌊 Waterworld, Stoke-on-Trent Thrill slides Indoor
🏖️ Sandcastle Waterpark Family day out Indoor
☀️ Splashdown Quaywest Outdoor fun Outdoor
👨‍👩‍👧 Splashdown Poole Families Indoor
🏕️ Blue Lagoon Holiday resort Indoor
👶 Brean Splash Younger children Indoor
🌊 Coral Reef Wave pool Indoor
🏄 LC Swansea Family activities Indoor
💷 Calypso Cove Value for money Indoor

🥇 Alton Towers Waterpark – Best Overall

Alton Towers Waterpark
Alton Towers Waterpark is one of the UK's premier resort waterparks.

If you're already planning a visit to Alton Towers Resort, adding the Waterpark is an easy recommendation. Featuring indoor tropical lagoons, outdoor pools, lazy rivers, interactive play areas and the famous Master Blaster water coaster, it offers something for every member of the family.

It's particularly good for families wanting to turn a single theme park visit into a full weekend break.

 

🌊 Waterworld Stoke-on-Trent – Best Thrill Slides

Waterworld Stoke
Waterworld is packed with high-speed flumes and exciting attractions.

If fast slides are your priority, Waterworld delivers. Home to numerous high-speed flumes, a wave pool, rapids and interactive family attractions, it's one of the UK's largest indoor waterparks.

It's also conveniently located less than half an hour from Alton Towers, making it an excellent addition to a Staffordshire getaway.

 

🏖️ Sandcastle Waterpark, Blackpool – Best Seaside Waterpark

Located opposite Pleasure Beach Resort, Sandcastle Waterpark is one of the UK's most popular indoor waterparks, boasting more than 18 slides and attractions. Highlights include the thrilling Master Blaster, the UK's longest indoor water coaster, alongside the Aztec Falls family raft ride, a wave pool, lazy river and interactive splash areas for younger visitors.

Its seafront location makes it the perfect addition to a Blackpool weekend, whether you're combining it with a day at Pleasure Beach Resort or simply looking for an indoor attraction when the British weather doesn't cooperate.

☀️ Splashdown Quaywest, Paignton, Devon – Best Outdoor Waterpark

Perched above Goodrington Sands, Splashdown Quaywest is the UK's largest outdoor waterpark and features a fantastic selection of flumes, family slides and splash attractions. From high-speed drop slides to gentler family rides, there's something for all ages during the summer season.

With stunning views across the South Devon coastline, it's an ideal destination for families holidaying on the English Riviera and one of the country's best outdoor waterpark experiences.

👨‍👩‍👧 Splashdown Poole, Dorset – Great for Families

Splashdown Poole offers a brilliant mix of exciting flumes and family-friendly attractions, making it an excellent choice for visitors of all ages. Younger children can enjoy dedicated splash areas while older guests have plenty of thrilling slides to keep them entertained.

Located close to Poole Harbour and Bournemouth, it's a fantastic addition to a Dorset holiday and an ideal option if you're looking for a full day of indoor water-based fun.

🏕️ Blue Lagoon, Pembrokeshire – Best Holiday Resort Waterpark

Located within Bluestone National Park Resort, Blue Lagoon combines a tropical indoor climate with a wave pool, lazy river, exciting flumes and interactive water play areas. The waterpark is heated using biomass energy, helping to maintain warm temperatures throughout the year.

It's a fantastic choice for families staying at the resort, while day visitors can also enjoy one of Wales' best indoor waterpark experiences surrounded by the beautiful Pembrokeshire countryside.

👶 Brean Splash, Somerset – Perfect for Younger Children

Brean Splash is designed with families in mind, offering gentle slides, interactive splash zones and a 25-metre swimming pool alongside dedicated areas for younger children. While it isn't focused on extreme thrills, it's a relaxed and affordable day out for families with little ones.

Situated within Brean Leisure Park, it's easy to combine your visit with amusement rides, soft play and other nearby attractions to create a full family day out.

🌊 Coral Reef Waterworld, Bracknell – Best Wave Pool

Coral Reef Waterworld is one of the South East's most popular water attractions, featuring five exciting waterslides, an erupting volcano, pirate ship, rapids and one of the UK's largest interactive water play areas. Its impressive wave pool remains a firm favourite with visitors of all ages.

Located just outside London, it's a great choice for families looking for a high-quality waterpark experience without travelling across the country.

🎉 LC Swansea, South Wales – Great All-Rounder

LC Swansea combines the facilities of a modern leisure centre with the excitement of a family waterpark. Visitors can enjoy a wave pool, Aqua Slide, lazy river, interactive splash areas and even an indoor surf simulator, making it one of the most varied attractions in Wales.

Situated on Swansea's waterfront, it's a fantastic all-weather attraction and a popular choice for both local families and holidaymakers exploring South Wales.

💷 Calypso Cove, Barnsley – Best Value

Calypso Cove offers one of Yorkshire's best-value family water days out, with exciting flumes, splash zones, fountains and an adventure play area designed for younger visitors. While it's smaller than some of the UK's destination waterparks, it still packs plenty of fun into an affordable visit.

If you're looking for a budget-friendly family attraction that doesn't compromise on entertainment, Calypso Cove is well worth adding to your list.

Money-saving tips

  • Book online in advance whenever possible.
  • Look for combined hotel and attraction packages.
  • Visit during off-peak weekdays if your schedule allows.
  • Check whether lockers, parking and towel hire are included before arriving.
  • Bring suitable footwear for walking between attractions.

Our verdict

Whether you're looking for adrenaline-filled slides, a relaxing tropical escape or somewhere to keep younger children entertained for hours, there's a UK waterpark to suit every family.

For an all-round resort experience, Alton Towers Waterpark takes our top spot. If speed is your priority, Waterworld is hard to beat, while Sandcastle remains one of Britain's most iconic seaside water attractions.

Whichever you choose, booking ahead can often save money, guarantee entry during the busy summer holidays and leave you with more to spend on ice creams and souvenirs.