Yep, there's a person in that waterfall.
When most people see a 500 foot waterfall, they freeze in their tracks, gawk at the awe-inspiring force of nature, and snap a few photos before leaving to go home.
"Canyoneering," Chatsuthiphan explains, "is pretty much the opposite of hiking or rock climbing. The point is to start at the top and work your way down. It involves downhill hiking, rappelling and sometimes cliff jumping. It’s all about the descent."