If you don't mind the lack of air-conditioning, these markets provide an excellent shopping experience. Should you book a snorkeling tour to Isla Mujeres, you will likely be given time to shop on the island. Though not rich with fancy boutique stores, Isla Mujeres is a relaxing place to shop for more traditional Mexican items. If you have any exact questions regarding any of these, it would be best to speak with your hotel or travel agency. Be sure to keep the phone number of your hotel on hand when you go touring, as they will be the best source of information regarding services available to you.
Banks typically offer the best rate of exchange, hotels offer the worst.
In the case of a medical emergency, your hotel should be able to provide the name of an English speaking physician. This hospital is geared toward tourists and an English speaking doctor is usually on call. The American consulate can provide information regarding available medical care for tourists as well. For more information on these or other consulates, contact your travel agency or hotel information desk. Should you need a prescription filled, most pharmacies are tourist-oriented and have at least one employee who can speak English.