On my last trip to Cozumel we did the Party Bus. This was one of the most enjoyable times I have ever experience. I love Cozumel and have been there about 8 times. The Party Bus was great, it took you to the other side of the island with very nice unspoiled beaches. I believe we went to total of five beaches. You could do whatever you wanted once there. We stayed at each one for quite some time. I highly recommend this, they can be found on facebook.