Take the class, but IMO, you want to take a cavern/wreck course before you think about penetrating a wreck.
A advanced/technical wreck course or intro to cave/cave would be a good idea before you start doing "serious" penetration.
I managed to survive a few years of penetrating wrecks without training, knowing what I know now, I´d say it was just dumb luck.
YMMV
A advanced/technical wreck course or intro to cave/cave would be a good idea before you start doing "serious" penetration.
I managed to survive a few years of penetrating wrecks without training, knowing what I know now, I´d say it was just dumb luck.
YMMV