God those were fun. Dilbert Dunker, then the helo dunker. Have a seat, wait till you hit the water and are completely upside down before starting egress. What, you want to see, that isn't possible because you will be wearing goggles but when you can finally see blow some bubbles and follow them to the surface. We also did open ocean stuff, float, swim, get picked up by helo. That was always a fun few days going to DWEST (Deep Water Environment Survival Training). I never take off my seat belt unless I am getting out of my seat.
bob
I would have loved to do the open ocean stuff, but I got screwed and pretty much every time went to Lemoore NAS. They kinda had a torture chamber to simulate open ocean stuff ("Disneyland but the rides ain't fun" is how I think the instructors put it) where you would do a "helo lift" but with a crane while some big nozzles shot pressurized water at you, and the parachute platform, where you'd get hooked to a winch that would not gently pull you off a platform into the water and drag you across the pool while you unhooked you harness.
I gotta say that the navy had that training down, even taking people who couldn't swim and getting them trained up in under a week. Though I still remember that one time one of those "new swimmer" guys panicked in the dunker and started kicking his feet and kicked me good right in the head on my way out of the cockpit.