"You can drown on dry land if someone is pouring water down your throat," Zack shrugs. "So we're going to be really careful. But most of the time in places like this there are people whose entire job is to make sure that you don't. And I won't let it happen either."

He keeps walking along the edge until they get to the shallower area and then he smirks at her.

"You ready for this?"