Prerequisites:

TSD certification, 100 dives, medical certificate for scuba activities, FOP exam suggested

ERD – Level 4 (Extended Range Diver). It can be subscribed as the accomplishment of the TSD course. The diver starts to extend his bottom time and so his decompression strategy about volumes and types of mix.

It's suggested to join ERD with Intermediate Tri-Mix Diver course (Level 5).

All dives will be planned using ANDI-GAP software.

Max depth: 50 meters

Deco: as required

Mix: as required