yak:Soggy, I'll be arriving (PDC) the day you're heding back.
There's no comparison between Coz and PDC reefs. PDC, while somewhat protected by Coz, is still exposed, and thus, the viz is significantly less. Last April, the avg viz on my dives was about 60 feet. In Coz, it's probably 100 or more.
But, in PDC you do have the cenotes in your backyard. PM me if you would like more information on the package pricing I have received in my inquiries with Tank-Ha and DiveMike. (I think I'm going with Mike).
Both operations are pretty good. Dive Mike is a smaller operator than Tank Ha and I think you will have more personalized service dealing with Mike and his staff.