Santa Rosa Wall is one of Cozumel’s most well known dives. It is a really good wall with lots of swim throughs and is not too far from San Miguel so it is easy for the dive boats to get to it. It does get a lot of diver traffic, so try to plan your dive accordingly. It makes a nice afternoon dive, when most of the divers have gone elsewhere.
On the top edge of the wall towards the shore there are sandy bottom areas and with nice big overhangs to hide out from the current. The coral is rocky with large rocky outcrops that are 30-40′ tall. The wall drops steeply, but there are ledges and some sandy areas on the way down. There are beautiful swim throughs that take you from the wall back to the sandy area, and vice versa. Look for French Grunts and Schoomasters in the darker areas.