Gee whiz, there is hardly any difference at all!Well as far as TDI goes (who i'm intending to train with):
The major things that the DP course teaches that Intro To Caves/Full Caves don't are:
- Decompression dive planning including:
- Decompression gas choices
- Tables vs. personal dive computers
- Emergency and contingency planning (equipment failure, omitted decompression, etc.)
- Decompression diving procedures
- Following a decompression schedule
- Gas switching
- SMB/lift bag deployment
- Equipment considerations, cylinder labeling, analyzing nitrox mixtures, and gas blending procedures