Here's the course, its going to be the long version.
Jump/fall/roll/parachute off the boat -- flash your favorite OK symbol and add some dihydrogenmonoxide between you and the surface till your at the depth desired. Maintain buoyancy till end of dive time or air low; don't move unless your removing a jelly fish, yanking your buddies fins off so the shark gets him/her first, or you have to avoid an object. Remove dihydrogenmonoxide layer slowly and safely according to your training and plan. Surface flailing your favorite "GREAT DIVE!" and OK signal.
Drift dives are almost as easy as pool dives.
Jump/fall/roll/parachute off the boat -- flash your favorite OK symbol and add some dihydrogenmonoxide between you and the surface till your at the depth desired. Maintain buoyancy till end of dive time or air low; don't move unless your removing a jelly fish, yanking your buddies fins off so the shark gets him/her first, or you have to avoid an object. Remove dihydrogenmonoxide layer slowly and safely according to your training and plan. Surface flailing your favorite "GREAT DIVE!" and OK signal.
Drift dives are almost as easy as pool dives.