My girlfriend and I will be visiting Puerto Rico for our first time over 4th of July weekend. We're staying for 4 nights and 5 days and would like to see as much as possible while still having a day or two to relax at a beach. We're planning on renting a car for a few days or the entire time so transportation shouldn't be an issue and allow us to cover more ground.
We've been told to spend a day or two in old San Juan walking around town. Is this too much or too little time? What should we make sure we see?
What beaches/areas should we visit? Should we go to El Yunque.
Any recommendations/suggestions welcomed! We're open to anything just need to know what areas to check out.