Cozumel uses the Mexican Peso (MXN), and it is worth your while to exchange some money into the local currency, both for ease and often for favorable pricing. That said, the US Dollar is widely accepted, and even preferred in many of the hotels, dive operations, and busy tourist areas. Change for large bills – whether in MXN or USD – is sometimes challenging, so best to stock up on small bills! Credit cards are accepted in many places – namely Visa and MC. However, this is not universal, and especially not in more remote areas of the island – like the eastern coast of Cozumel, familiarly known as "the Other Side." Some remote restaurants and shops have occasional internet connection issues, so try to have cash on hand, and be sure to ask ahead about using credit cards. When in doubt, plan ahead: Cash is King (of course…). Go here to read our full feature on using cash and credit in Cozumel.