Grand Cayman Snookling Tour. Snookling — nope, it's not a typo, but an exciting underwater adventure that's not quite snorkeling and not quite scuba diving. A state-of-the-art breathing system with a full face mask, snookling allows you to be fully submerged in the water while breathing as if you’re above the surface. After a safety orientation, enter the underworld of the Caribbean Sea, and spend about an hour exploring what lies beneath. It's an innovative and easy way to see the marine life of Grand Cayman without bulky diving equipment. Book now and Save 10%: Grand Cayman Snookling Tour.