#77,
We have been to Cozumel too many times to count and Cancun too few times to care! If you are diving, skip Cancun, go directly to Cozumel and collect 200 pesos.
There are all sorts of good places to stay on Cozumel and many good dive shops. A number of people we know take a package with Island Dreams Travel (
www.islandream.com ). They provide Continental AL service with the only non-stop from Houston to Cozumel, pick up and return service to the hotel, hotel reservations, and diving reservations.
The Hotel is the Fiesta Americana, a great place. The dive shop is called The Dive House and is located right on the hotel grounds. So, you store your gear in one of their lockers after you check-in (bring your own lock if you do not want to buy one there), have a leisurely breakfast the next day, saunter down to the locker for your gear, and then take the short walk to one of the dive boats. Not a bad way to start the day!
The Fiesta is a taxi ride from town. There are numerous good restaurants in town. Currently we favor Guido's, The French Quarter and La Mission, but there are many others. Or you can eat at one of the restaurants in the hotel. But to be honest, we kinda like heading into town for dinner and a stop at the Kodak shop to have our film processed: we are real fans of instant gratification!
October is the very tail end of hurricane season, so you should be okay. Expect water temps of 80 deg, vis in the neighborhood of 100 ft., and an abundance of fish and spectacularly colored coral that will make you want to return every year. We do!
Scorpionfish (Hey, that's not kelp. It's my lower lip!)