Contoy is located 30 Kilometers north of Isla Mujeres. The best way to get to Contoy from Cancun is to take first the ferry from Cancun to Isla Mujeres and then from Isla Mujeres take a boat to Contoy. The Ferry Cancun -Isla Mujeres runs every 30 minutes, once in Isla Mujeres you will find multiple options to go to Contoy Island (private and shared tours and transportation services).