Discos and trendy clubs are not Cozumel's scene. In fact, some visitors complain that the town seems to shut down completely by midnight. Perhaps it's the emphasis on sun and scuba diving that sends everyone to bed early. (It's hard to be a night owl when your dive boat leaves first thing in the morning.) In fact, the cruise-ship passengers mobbing the bars seem to party more than those staying on the island. Sometimes, the rowdiest action takes place in the afternoon, when revelers pull out the stops before reboarding their ships back to the mainland. Dance and music clubs come and go; check for new clubs around the pedestrian streets in San Miguel.