In reply to Deek:
> How do your knees get shot to pieces by high board diving.
All high board divers are also springboard divers, which involves a jump and bounce. There is also the training, which includes trampoling as well as leg strengthening exercises.
It never bothered my knees, but I only did about 15 hours a week, and mostly plain diving rather than specialized training. I suppose some people are susceptible to joint problems too, no matter how good they are.