I went to cozumel in November an went snorkeling. This was the first time I have been there in 10 years. I noticed that the island has become very developed. Since I was tight on time I only had one day their and did not get a chance to view the whole island but from the port to where I went snorkiling they have really built up the island. The one thing I did not like was right when you get off the boat you get harassed by all the vendors selling snorkeling trips, Rental tours ect... I whish that it was not so built up but that is progress I guess....