
Located in Germany, the largest indoor pool in the world is a staggering 161,000 square feet.
It's hard to believe that this massive pool was built in 2005, and it's still a popular destination for swimming and relaxation.
World's Largest Indoor Pools
The world's largest indoor pool can be found in Miyazaki, Japan, as part of the Phoenix Seagaia Resort.
This massive pool measures 300 x 100 x 38 meters and has a pill-shaped design with a retractable roof.
The pool is located just a short walk from the Pacific Ocean, making it a bit redundant, but it still has some advantages over other pools.
The swimming area is heated to a comfortable 30 C (86 F), and the water is kept at a pleasant 28 C (82 F).
This allows swimmers to enjoy a warm and cozy dip in the pool, no matter how chilly or rainy it gets outside.
The pool's enclosure makes it useful even in the winter, unlike some other large indoor pools that are more like oversized outdoor pools.
For your interest: Swim X Pool
Japan's Indoor Pool Record
The Phoenix Seagaia Resort in Miyazaki, Japan is home to the world's largest indoor pool, measuring 300 x 100 x 38 meters.
This massive pool is roughly pill-shaped with an enormous retractable roof.
The pool is heated to a comfortable 30 C (86 F) and the water is kept at 28 C (82 F).
It's a short walk from the Pacific Ocean, but the pool's enclosed design makes it a worthwhile attraction, especially in winter.
The designers of the pool clearly wanted to build a useful attraction, rather than just a record-breaking pool.
Blue Abyss Pool Facts
The Blue Abyss pool is a massive facility located in the UK, and it's set to become the world's biggest and deepest indoor pool upon completion in 2023. It will be used to train astronauts, research new technology, and test subsea robotics.
The pool is 164 feet deep and holds the equivalent of 17 Olympic swimming pools, which is roughly 11.2 million gallons of water. That's a lot of water!

The Blue Abyss facility will also feature an astronaut training center, hypobaric and hyperbaric chambers, and a microgravity suite, making it a hub for various industries.
The pool's dimensions are 40m by 50m on the surface, with a 16m wide shaft plunging to a depth of 50m. It's an impressive structure that will allow for a range of activities.
Here are some key facts about the Blue Abyss pool:
- Pool size: 40m x 50m
- Depth: 50m
- Water capacity: 42 million liters (or 17 Olympic-sized swimming pools)
- Sliding roof and 30-tonne crane for lowering large objects into the pool
- Pool temperature, lighting, and salinity can be controlled to simulate different conditions
The project is expected to support 160 jobs and generate an estimated £8 million for the local economy every year once it's open.
Frequently Asked Questions
What is the largest indoor water park in the USA?
The Kalahari Indoor Waterpark is America's largest indoor water park, covering 223,000 square feet of fun. Experience the ultimate splash destination for the whole family!
Where is the largest residential pool in the US?
The largest residential pool in the US is located on Rick Ross's 235-acre estate in Fayetteville, Georgia. It holds an impressive 350,000 gallons of water, a standout feature among luxury properties.
Where is the largest swimming pool in the US?
The largest swimming pool in the US is located in Wesley Chapel, Florida. You can experience it at Epperson Lagoon, a massive pool perfect for a fun day out.
Featured Images: pexels.com


