In order to get to Cozumel you can fly to its International Airport (CZM), with direct flights from different cities in Mexico and the US. You can also fly to Cancun's International Airport (CUN), and take a bus or a taxi to Playa del Carmen.
From Playa del Carmen you can take one of the public ferries, that depart every hour. The boat ride takes about 45 minutes.
♥ Visit Tagulandang Island ♥