The Largest Swimming Pool in the World Ever Constructed

We all love amazing holidays! Far-flung destinations in fantastic hotels with great food and warm pools to splash about in. Yet being elbow-to-elbow with a horde of holidaymakers is no fun. The answer? Mega-pools. These gargantuan swimming pools give you so much space you’re more likely to get lost than squashed! Read on to discover where you’ll have to go to find the biggest swimming pool in the world.

Building Big Engineering
7 June 2022

It’s hard to know with any degree of certainty, but the world’s first swimming pool is believed to be the brick-lined Great Bath at the Mohenjo-daro archaeological site in Pakistan – built in the third millennium BC.

The ancient Greeks and Romans built pools to train their athletes and soldiers, and Roman emperors had private swimming pools which they shared with fish, hence the French word ‘piscine’ and the Italian variation ‘piscina’.

Today, the largest above ground pools in the world are quite staggering feats of design and construction, and even the most opulent Roman emperor would marvel at these water-based wonders of the world.

What is the Biggest Swimming Pool in the World?

One of the largest swimming pools in the world, San Alfonso del Mar, covers eight hectares with 250 million litres of sea water. (Photo: pierivb via Getty Images)

Forget your local swimming baths or even Olympic-sized pools, these bathing behemoths have to be seen to be believed! Here are the contenders for the biggest pool in the world.

Tooting Bec Lido

Location: London, UK | Size: 2,760 m2 | Water: Fresh water

The famous Tooting Bec Lido may not be the largest swimming pool in the world but it is the UK’s largest fresh water swimming pool, holding over 4.5 million litres of water. It opened in July 1906 and is one of the UK’s oldest open-air swimming pools. It was proposed by the Rector of Tooting, the Reverend John Hendry Anderson, as a project for local unemployed men, and has become one of south London’s most famous landmarks.

Dreamworld Fun Lagoon

Location: Karachi, Pakistan | Size: 8,900 m2 | Water: Well water

Pakistan’s Dreamworld Resort, Hotel & Golf Course is home to the world’s largest freshwater swimming pool. The pool is filled with over nine million litres of locally-drawn well water. As well as a huge selection of waterslides, there is an artificial wave machine producing waves over a metre high!

Lagoon at Epperson

Location: Florida, USA | Size: 30,350 m2 | Water: Fresh water

Holding almost 66 million litres of water, the Lagoon at Epperson is one of the largest above ground pools in the world. It has a perimeter of 1.3 kilometres and is surrounded by a sandy beach. The Caribbean blue water is host to a huge inflatable obstacle course, waterslides, a swim-up bar, loads of watersports and of course plenty of space for swimming!

MahaSamutr Country Club & Luxury Villas

Location: Hua Hin, Thailand | Size: 72,000 m2 | Water: Seawater

Sitting on the stunning Malay Peninsula, MahaSamutr (literally, ‘The Ocean’) is a private complex of 80 luxury villas, all of which are on the edge of Asia’s largest man-made lagoon. It’s over 800 metres long and fringed by an artificial beach. One of the biggest swimming pools in the world is a watersports lover’s paradise with swimming, sailing, kayaking and canoeing every day of the year.

San Alfonso Del Mar

Location: Algarrobo, Chile | Size: 80,000 m2 | Water: Sea water

The private residential resort of San Alfonso del Mar was the world record holder for the title of biggest pool in the world until it was eclipsed by the CityStars Lagoon. This stunning salt water seascape holds a quarter of a billion litres of crystal clear water, is over a kilometre long and is literally centimetres from Chile’s Pacific coast. If you’re lucky enough to find yourself in this perfect pool, you can enjoy kayaking, canoeing, paddle boating as well as a saltwater swimming pool inside a glass pyramid which looks like it was taken straight from the Louvre in Paris!

CityStars Lagoon

Location: Sharm El Sheikh, Egypt | Size: 96,800m2 | Water: Sea water

Listed in Guinness World Records as the world’s largest crystalline lagoon, this is the largest swimming pool in the world. It opened in 2015 in the middle of the Sinai desert and is surrounded by sandy beaches. It is the sensational centrepiece of the CityStars Sharm El Sheikh Resort and was created by Chilean company Crystal Lagoons who are responsible for other huge pools on this list including MahaSamutr in Thailand, the Lagoon at Epperson in Florida and the pool at San Alfonso del Mar.


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