,As an autonomous diver, we need to communicate with our buddy and planificate the dive. Here's what to ask. Aptitudes : - How do you consume your air? - Ears sensibility? - Cold sensibility? Gear : - Do you have the base equipment? (decompression stop parachute?) - Does your computer put deep decompression stop? How it is settled? - Do you have any light? - Any submersible shelf? Global dive : - Set a max depth time and a take-off pressure - Max operating depth - How fast the group will evolve? - Is it your first or second dive of the day? (for decompression) - Remind the gestures to communicate