I have a "full cave" card and about 100 post-certification cave dives. I have been actively ocean diving and even doing wreck diving, which are overhead environ

I have a "full cave" card and about 100 post-certification cave dives. I have been actively ocean diving and even doing wreck diving, which are overhead environments, but I haven't been in a cave in 10 years. I still likely take a refresher/checkout course to polish my skills with an instructor just to be safe if I wanted to cave dive again. Your instincts are what can kill you in a cave diving. But it's worth it, you visit places that few people have seen with their own eye and it's safe if you follow the rules.