First dive at Nemo 33, Bruxelles.
You don't need an insulation suit, or any weights. The visibility is perfect and the environment is great for exercises. A dive takes around 40-50 minutes (max - in our case it was 27 minutes) and costs 22 Euros.
Dive data for the dive:
Time In: 12:24
Time Out: 12:51
Max Depth: 11.4m
Water temperature: high (no insulation suit needed)
Weights: none (no insulation suit, 12L steel)
Air consumption (12L):
In: 180 BAR
Out: 100 BAR