10 Freediving Deep Pools Around the World

No jellyfish, no thermoclines, no excuses—just pure depth and perfect conditions. Here's where to find the best deep freediving pools on the planet.

By Kristina Zvaritch
Editor Deena Lynch

Deep freediving pools give crystal-clear visibility and depth for performance and precision.
Photo credit © @nusy.horvath.

Freedivers are hardwired to love the ocean and everything in it. But the ocean doesn't always love freedivers back—unpredictable currents, eye-watering thermoclines, stinging jellyfish, and weather that changes with a snap of your fingers. Enter deep pools: purpose-built facilities where freedivers can train year-round in warm, controlled conditions. These extraordinary pools offer consistent temperatures, unlimited visibility, and depths that rival the ocean itself—minus the surprises.

From Dubai’s 60-meter sunken city to Europe’s geothermal wonders, here are the top 10 deepest pools in the world for freediving.

Europe

Deepspot (Mszczonów, Poland)

Depth: 45.45 meters (149 feet)

Water Temperature: 32–34°C (90–93°F­­­)

Session Length: 1.5 hours

Platforms: 4m, 6m, 10m, 20m, 45m

Deepspot opened in 2020 and is currently the deepest pool in Europe. Explore Mayan ruins and a wreck at the bottom (underwater caves are for scuba divers only), and dive down to meet your friends and family in an underwater tunnel made specifically for spectators. Attached to the pool is a hotel with a restaurant, making it easy to spend a few days diving to your heart’s content.

Y-40 The Deep Joy (Montegrotto Terme, Italy)

Molchanovs athlete Nusy Horvath at Y-40 in Italy. Photo © @carlosluna.films.

Depth: 42.15 meters (138 feet)

Water Temperature: 32–34°C (90–93°F­­­)

Session Length: 1.5 hours

Platforms: 1.3m, 5m, 6m, 8m, 10m, 12m, 15m, 42.15m

Y-40, which opened in 2014, is filled with 4.3 million liters of natural geothermal water from the nearby Euganean Hills. Apart from the pool, there is also a hotel, thermal spa, and hot spring for you to enjoy after your dives, and viewing windows for fun selfies with people outside.

Nemo 33 (Brussels, Belgium)

Depth: 34.5 meters (113 feet)

Water Temperature: 33°C (91°F)

Session Length: 1.5 hours

Platforms: 1.3m, 2.5m, 5m, 10m, 33m

Nemo 33 is the oldest modern deep diving pool, opening its doors to the public in 2004. Underwater caves and viewing windows are nestled in 2.5 million liters of chlorine-free purified spring water, with a restaurant featuring Asian cuisine and a view of the divers. You can even dine in an underwater restaurant that sits in a sphere 10 meters (32 feet) underwater.

A30 (Vsevolozhsk, Russia)

Freediver descends in the 30-meter pool of A30 in Vsevolozhsk, Russia. Photo © @akivis.

Depth: 30 meters (98 feet)

Water temperature: 28°C (82°F)

Session Length: 1.5 hours

Platforms: 1.7m, 6.5m, 11m, 16m, 30m

A30, Russia's first and only deep pool, holds 2.5 million liters of water and features a giant underwater chessboard, picturesque architecture complete with columns and tunnels, and seasonal decorations perfect for photos and videos. The facility hosts competitions, lectures, and master classes, and includes a cafe with windows looking into the pool, a conference center, and a gear shop where visitors can test equipment before buying.

Asia

Deep Station (Yongin, South Korea)

Depth: 36 meters (118 feet)

Water Temperature: 30–31°C (86–88°F)

Session Length: 3 hours, 5 hours, 9 hours

Platforms: 1.3m, 2.2m, 5m, 10m, 16m, 36m

Deep Station opened in 2022 as the deepest pool in Korea. Natural aquifer water fills the pool, which holds a Baobab tree, an underwater temple, and Poseidon's Trident, with a special zone for the best underwater photos and videos. You can also rent Molchanovs fins, wetsuits, masks, and snorkels, giving you the perfect opportunity to try before buying!

Paradive 35 (Siheung, South Korea)

Molchanovs athlete Woongja training FIM in Paradive 35. Photo © @underwatergraphy.

Depth: 35 meters (115 feet)

Water Temperature: 30°C (86°F)

Session Length: 3 hours, 6 hours

Platforms: 1.3m, 5m, 10m, 20m, 35m

Paradive 35 is Korea’s second-deepest and newest pool, debuting in 2023. Egyptian sculptures and seasonal decorations adorn the picturesque swim-through tunnels, which are open for freedivers to take photos. A children’s water park is located on the rooftop with pools and a bar, and you can also try out indoor surfing and snack at a café.

K-26 (Seoul, South Korea)

Depth: 26 meters (85 feet)

Water Temperature: 29°C (84°F)

Session Length: 3 hours

Platforms: 1.3m, 2.5m, 5m, 10m, 26m

Korea’s first deep pool, K-26, debuted in 2018, and remains a popular destination for intermediate freedivers. The viewing panels in the lobby—complete with an attached café—mean your dive buddies can critique your technique over coffee.

DiveCube (Taichung, Taiwan)

Depth: 21 meters (69 feet)

Water Temperature: 30°C (86°F)

Session Length: 1.5 hours

Platforms: 1.3m, 3m, 7m, 11m, 21m

Taiwan’s deepest pool is located inside DiveCube Hotel, which opened its doors in 2017. Seasonal decorations mean Christmas trees at the end of the year, Lunar New Year decorations just a couple of months later, and more, including a year-round Life of Pi-themed shipwreck (only for scuba divers to enter). Viewing areas are located in an outside area and inside the restaurant, where you can happily wave at diners through an underwater window.

DiveHub (Dongguan, China)

Depth: 46 meters (151 feet)

Water Temperature: 29–30°C (84–86°F)

Session Length: 3 hours, 6 hours

DiveHub, the deepest pool in China, is also conveniently located near Hong Kong, and is packed with underwater video cameras, mirrors for selfies and technique analysis, and seasonal decorations. The attached lobby serves coffee and beer for post-dive recovery, and a hotel next door makes multi-day training trips convenient. Bookings must be made through WeChat.

Middle East

Deep Dive Dubai (Dubai, United Arab Emirates)

World Champion freediver Alexey Molchanov exploring Deep Dive Dubai on the line. Photo © @freedivinguae.

Depth: 60 meters (197 feet)

Water Temperature: 30°C (86°F)

Session Length: 2 hours

Deep Dive Dubai is the world's deepest pool (with an incredible 14 million liters of water) since its opening in 2021. Instead of platforms like other dive pools, it houses a breathtaking post-apocalyptic sunken city, complete with furnished apartments, a library, an arcade, a giant tree, and plenty of structures to explore.

If you're more of an ocean-lover than a pool explorer, check out these amazing freediving destinations in the Philippines—where the water is always warm!