Heading to Playa in 4 weeks! We've been to Cancun but have never been to Isla Mujeres..we are planning on doing it this time. Is it better to do an organized tour through a company, or to catch the ferry and go around the island on your own? My main concern is that I've heard they have great snorkeling around the area and was wondering if these areas were accessible on your own of if they were areas that you need to be taken out to by boat. Other than snorkeling, what other things are there to see/do on the island?? Any input would be appreciated!!