My son just took an offshore survival course in anticipation of doing the Pac Cup (Double handed SF to Hawaii) next year.. cost around $700. One weekend with an entire day in the water.. he thought it was worthwhile.
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
1984 Fast/Nicholson 345 "FastForward"