About half of our group or so stayed an extra few days in Cozumel. 3 different families brought their mothers/fathers/daughters and we wanted to play “tourist” with the additional family members. One of our excursions were to jump on the ferry and travel across to the mainland. Our destination… Chichén Itzá.
If you ever have the opportunity to go to Cozumel, I’d definitely suggest taking the ferry across to the mainland. It was about 45 minutes. The cab driver that dropped us off at the ferry station recommended to buy a one way ticket since there are multiple ferry companies that travel back and forth and they won’t accept another ferry companies tickets. It just keeps you from getting stuck for 3 tickets when you only need two.
So this is a real pirate ship that travels around Cozumel but it is actually a dinner cruise from what I’ve researched.