Diving at Transfo
Diving at Transfo
Transfo Duiktank pursues an open policy: the dive tank serves many purposes, for both sport and professional divers. With its depth and large volume of clear water it is a unique location for training, courses and introductory dives. Experience elements and a modular course add extra challenge.
The tank is 15 m deep with a diameter of 20 m. Up to 25–30 divers can dive simultaneously, but during public hours a limit of 20 divers per time slot applies.
The water temperature varies from 16 °C in winter to about 26 °C in summer. You dive with your own equipment, which must be clean. Changing rooms and lockers are available; given the limited space, please bring only what you need.
The story
From fuel-oil tank to dive tank
Hidden in a buffer basin on the Transfo site in Zwevegem stand three old fuel-oil tanks. In the largest — 17 metres tall, 28 metres wide — you now dive in crystal-clear water.
When an international group of young architects brainstormed the site's future, wild ideas flew around: an arena theatre, a climbing hall… and a dive tank, inspired by the Gasometer in Duisburg. That last idea stuck with everyone.
Dive federation NELOS did the maths and confirmed what every diver here feels: in Belgian and Dutch open water visibility is always limited — in the tank, never. Deep training with perfect visibility: the ideal stepping stone between the pool and the sea.
The cleverest part is the construction: the dive tank sits deliberately off-centre inside the old oil tank. The ring around it holds everything — reception, cafeteria, changing rooms and the entry zone — and daylight falls through the air-cushion roof all the way to the bottom. Even non-divers gaze straight into the water from the cafeteria.
17 m
tall oil tank
28 m
in diameter
15 m
of crystal-clear water
4.7 mln
litres of water
16–26 °C
all year round
How the tank is built
A tank inside a tank: climb up on the inside and descend 15 metres below the surface on the other side.
Want to feel what it's like, hovering in 15 metres of crystal-clear water?
The dive tank
A cylindrical tank 15 metres deep with crystal-clear water — all year round. On your way down you pass platforms at different depths, portholes and the Atlantis decor with temple gate and submarine. Ideal to train skills, test equipment or simply enjoy.
Sessions & day tickets
You dive in regular one-hour sessions — and you can book as many as you like. Or choose a day ticket and dive all day (10:00–18:00) for the equivalent of four dives. Booking and payment are fully online — including with your digital dive card.
Who is it for?
The tank is there for everyone who dives seriously — or for the very first time:
- Certified sport divers
- Clubs and federations (all federations welcome)
- Professional divers and emergency services
- Instructors and dive schools
- Freedivers
Equipment rental & tank filling
Come dive. Come train. Come fill up.
Rent whatever you're missing on site — simply add it to your online booking. Fill your cylinder at one of our two compressors.
Courses & introductions
No certification yet, or ready for the next step? The tank hosts SSI courses from Try Scuba to Open Water Diver and freediving, plus snorkel guidance with an instructor. Groups without diving experience choose an introduction.
How your visit works
From parking and checking in at the cafeteria to signing out after your dive: the full step-by-step guide to your visit is on the practical info page.
House rules (RIO)
The operator applies house rules (RIO) to ensure smooth operation. By booking and/or using the tank, all users agree to these rules.
The story behind the tank
Diving in a repurposed fuel-oil tank: curious how this unique place came to be and which cross-border project made it possible? Read the full story of Transfo Duiktank.
Ready to dive?
Check the available sessions and book straight away online — you can also pay with your digital dive card.