Any advice for first time travelers to Punta Cana (in January)?

Any advice for first time travelers to Punta Cana (in January)?
If you are visiting from the US make sure you have a passport in order to be let back into the US. starting Dec. 31, one is required.

The weather is generally very good, the temperature is in the top 70s/low 80s. Most years it is not raining, and if it does, it only lasts a day or two.

Make sure that you bring sun block, at least one pair of slacks (some hotels, even all included, require slacks/pants for some of their nicer restaurants), and a good attitude.
Any advice for first time travelers to Punta Cana (in January)?
SUN BLOCK!!!
SUN BLOCK!!!
bring bathing suit and sunglasses-all i needed, also-hope u like corona or that jamacian ale-bout all they have there.
o-and don't fall asleep in sun.
enjoy the resort and don't get out of it unless you are going to see another attraction