The boat dives start with a deep dive, then a second shallower dive that allows more bottom time. By nature, the first will be more difficult, the second easier. As Gueyser explained our first stop at Santa Rosa, I read my guide book which described it as an "intermediate" difficulty, and Gueyser said the currents were stronger today. So, I made the decision to sit the dive out.
On the one hand, that was really, really, really hard to do, with him saying how this was one of the best dives in Cozumel. I mean... I was jonesing to get wet!