I spent 6 nights and 7 days at the CasaMagna Cancun Marriott Resort in October 2007. I never had to leave the property unless I planned a tour of Cancun/Mexico, went to a show, or participated in water activities. The restaurants on the proprety are top noch, the service is first class, and their spa is fabolous. You also enjoy signing privledges at the JW Marriott Resort next door.
A great opportunity to Chillax -being able to Chill and Relax at the same time.
Below you will find a few pictures taken from my room of the hotel pool, and I included one when I went scooba diving in Cozumel.