A very nice experience is to do the helmet diving initiation at TODI. This indoor diving paradise is located on the Be-mine complex, the largest and best preserved industrial complex in Flanders, Belgium. An industrial thickener has been converted into the luxurious and modern diving center or rather an “aquarium for divers”.
TODI is known for the thousands of tropical fish that live in the pool. The air and water temperature is about 25 degrees. The helmet dive initiation consists of a block of 2 hours where 2 buddy pairs first receive a briefing and then each make 2 dives. During the diving initiation there is plenty of time to enjoy the beautiful colored fish. Some skills are also covered. The booking of this activity is done via TODI, see the link

Initiatie Helmduiken – Todi | The ultimate experience