Y40 Deep Joy – the World’s Deepest Pool

Y-40 is projected by Architect Emanuele Boaretto and supported by the “Boaretto Group Hotel and Resort”. The name Y-40 is inspired by mathematical symbols. “Y” is the ordinate axis of the Cartesian system and “–40” means the world’s record depth or our pool- that is 40 meters underground. Y-40 is filled with thermal spa water. 4300 cubic meters maintained at a temperature of 32-34°C. The pool is 40 meters deep with a surface area measuring 21x18m. It has various intermediate depths and caves for technical scuba diving.

1
A drawing showing the depth of the Y40 Deep Joy, the worlds deepest pool. The design is harmonious with the surrounding countryside. (Photo by Courtesy Y40 Deep Joy)

2
The Y-40 Deep Joy is the worlds deepest pool. Located in the Euganean Hills of Italy, it was designed by architect Emanuele Boaretto and is a part of the Millipini Hotel. (Photo by Courtesy Y40 Deep Joy)

3
In addition to being the world’s deepest pool, the Deep Joy is filled with thermal spa water which is heated to 32 degrees C. (Photo by Courtesy Y40 Deep Joy)

4
The lobby outside of the Deep Joy. The pool was opened to the public for the first time on June 5, 2014. (Photo by Courtesy Y40 Deep Joy)

5
The 40 meter (or 120ft) deep pool has an underground bridge at -5m for those who want to stay dry. (Photo by Courtesy Y40 Deep Joy)

6
The Y-40 Deep Joy is the worlds deepest pool. (Photo by Courtesy Y40 Deep Joy)

7
The outside of the Y40 Deep Joy, which is built into the hillsides of Italy. (Photo by Courtesy Y40 Deep Joy)

8
The Y-40 Deep Joy features several levels and grottos. (Photo by Courtesy Y40 Deep Joy)

9
The various levels and caves make it ideal of technical scuba diving, for which lessons are offered at the Terme Milleprini Hotel. (Photo by Courtesy Y40 Deep Joy)

If you want more awesome content, subscribe to Design You Trust Facebook page.

More Inspiring Stories

A Shoe Doll That Belonged to a Child in the Slums of London, ca. 1905

Guinness World Records 2016 In Pictures

Robots at CES 2012: Hard Working, Funny and Dancing

Stunning Historical Photos From the Wreck of the Supertanker 'Amoco Cadiz' in 1978

Inside Amazon's Very Hot Warehouse

Destroyed Apple Products As Art In Stunning Photographs By Michael Tompert And Paul Fairchild

Humorous But Sad Illustrations By Santiago Bara That Might Make You Reflect On Life

Spectacular Award-Winning Photos from the 2025 GCCA Concrete in Life Photography Competition

"Speaking Clock": The Forgotten Technology of the Early Telephone Era

Before The Internet: Here's What A Publishing Company's Office Space Looked Like In The Mid-1980s

A Pair of Back to The Future Fans Have Built the World’s First Life–sized Replica of The Time Travel Train

Cute Handmade Ceramic Animals by Helen Burgess

An Apple-Inspired Concept Smart Home Hub That Looks And Feels Like A Cat

The Light Phone

Iceland Road Painted To Stop Arctic Terns Being Killed

A Photographer Documents The Secret World Of Stray Cats Of Kazakhstan

20 Perfect Photographs that Reveal the True Beauty of Our World in All Its Glory

The Spectacular World's Fair Exposition Universelle in Rare Pictures, 1899

Superb Yamaha Swan-Like Scooter With Insect Wings Will Make You Feel Like Flying

Wolseley-Vickers “Wheel-Cum-Track” Car, 1926

Artist Brings Tiny Illustrations To Life By Using Everyday Objects

Stunning Vintage Covers of 'La Science et Vie Magazine', France’s Vision of Modern Progress

Stunning Photos of David Bowie Working on Desktop Computer in Office, 1994

Spectacular Award-Winning Photos That Captured the World at the Global Photography Awards 2025

Prepare Kids for The Real World with This Ai-Generated Must-Have Toys

"The Golden Man" - the World’s first pure gold shirt worth $22,500 is made in India

Inside of Blizzard's Office

3D Printing Fashion: How I 3D-Printed Clothes at Home

Amazing Photos of the 1969 Holden Hurricane

Photos That Prove The Station Wagon Was Actually The Best Family Car Ever