Just curious what the divemaster situation is like in Cozumel. I've been to places where DMs are required by law and places where you can run off on your own (with an insta-buddy or maybe even solo). And where DMs are required, I've experienced cozy groups of 2-3 divers per DM and larger groups of 8-10. What's typical in Cozumel? We'll be diving with Dressel Divers. If the groups are typically larger, would people recommend paying to have a private guide for just the 3 of us?