Punta Sur Cathedral - Cozumel
There are two main parts of Punta Sur. The Punta Sur reef to the south consists of nice swim throughs and a spectacular chamber called the Cathedral. The northern part of Punta Sur contains the infamous Devil's throat. However, if you do the Cathedral section of the reef, you will usually dive by the Devil's throat section on the way to Colombia.
The Cathedral section is spectacular. There are large swim throughs at about 110'. The Cathedral is further north from the start of the swim throughs.