What Should I Pack for Electronics?
Phone
Waterproof Phone Case
You're going to be hanging out around water a lot on this trip. Taking advantage of the pool, the beach, or even on the boat headed out for snorkeling and diving, a waterproof phone case will save many tears. Some of the slightly more pricey options are good enough to use as an underwater camera, and that might be worth it for the snorkeling alone. Most are just good for keeping your phone dry. Bonus if it floats!
Other Considerations
Be sure to also check out the Cell Phone section in the FAQ, as well as the Free Wi-Fi page for more information on using your phone while in Cozumel.