I've dove Cozumel many, many times starting in 1990. Santa Rosa Wall is my favorite!
You descend over the side of the wall, even off at the desired depth and just let the current take you by the amazing life. It's deep below you and some people get scared looking down. But if you stay focused on the wall and...
The reef is so alive and so beautiful to look at. I love swimming through the coral caverns. We saw a seahorse and a spotted eagle ray here. We also saw a few turtles. I am looking forward to coming back!