K.W.
My husband and I are going to Puerto Rico for four days at the end of the month. We usually go to Mexico,but wanted a change. Cancun is good- beautiful weather and white sand. We booked our trip on hotels.com and found some nice trips. I hope you find a good place. Mexico and P.R. are easy to get to and when you only have 4 days that's important. Good luck!
K.