There are countless Bars and Restaurant in Cancun. All of them are walk distance depart, therefore, feel easy to walk around the street and choose the bars or restaurant you like.
In cancun, you can enjoy the wonderful blue sea and silver beach, try to surf if you like. Meanwhile, don't miss the nightlife in the bar: tasty beer, great music and enthusiastic waiters and waitresses. Moreover, you also can use one day to visit the Mayan ruins.
Good Luck!