Good advice being given here.
One thing I'd like to add, penetrating a cave i.e. a cave certification course, may be a good initialiser to get you used to overhead environments, and to your reactions within them.
But it must be remembered that caves are natural formations, and will not have the number of sharp, man-made edges, that can cut a line or snag your gear.
Stating the obvious? Guess so, but no harm in realising that wreck overheads deserve their own respect, in their own right.
The Doria has caught as many cavers as divers I believe.
Stay safe
Seadeuce
One thing I'd like to add, penetrating a cave i.e. a cave certification course, may be a good initialiser to get you used to overhead environments, and to your reactions within them.
But it must be remembered that caves are natural formations, and will not have the number of sharp, man-made edges, that can cut a line or snag your gear.
Stating the obvious? Guess so, but no harm in realising that wreck overheads deserve their own respect, in their own right.
The Doria has caught as many cavers as divers I believe.
Stay safe
Seadeuce