I am going to Akumal in August. I haven’t been there yet, but did some research and spoke to advertisers from the area at the diving show. It seems that all or most cenotes in the area are between Akumal and Tulum. I inquired about Cozumel which I wanted to go and they said there are no cenotes in Cozumel. Good luck, if you find some good spots and/or pictures would like to know maybe I can checkthem out when I go.