master_diver_UJ
Contributor
I would say at most times the clarity can be greater in Coz, but if you hit it right the clarity of the water right, Cayman can top Coz. Both have good looking coral, but I think Cayman will beat Coz with its colorful sponges. On the Brac and Little Cayman there is usually a better chance to see a shark than Coz. The walls at all three Cayman Islands are terrific, the walls in Coz cannot match. Maybe a bit more fish life in Coz. Coz has drift diving, Cayman has little of drift diving.
My wife would say in Cayman you can eat the food and drink the water with no problem while Coz has its problems. The towns are not alike, there is begging going on in Coz., at Cayman there is none that I've ever seen. The Caymanians are quite industrious. There is little poverty in the Caymans, no so in Coz.
The water does tend to be less stirred up in Cozumel netting you better visibility. And there's the fact that most Cozumel diving is drift diving.
But, I believe Grand Cayman offers more options underwater and more to see with her wrecks & walls.
Hands down - Cayman is a better/safer place to stay, eat, drink, & be entertained.
John