How trained tech divers use lines and reels to find their way into wrecks--and out of trouble.

The risks of DCS, running low on air and nitrogen narcosis increase as you go deeper. That's why you need our plan.

Put those tech-diving skills to use on these amazing sites.

What's it like to be a golf ball diver? What drives poachers and pros to risk polluted water, snake bites, gator attacks and accidental drowning? As much as $100,000 a year.