If I weren't getting propelled out of the mouth of a cave, I would definitely be going here to snorkel; maybe even try to hook up with a dive operator. But, that's not likely since we're probably going to fly the next day to see Tikal. But, if I decide I'm not up for getting propelled, I'll be snorkeling here:

Rendezvous Caye - It's the excursion called "Absolute Paradise" and I believe it!