I am traveling to Puerto Rico with my teen daughter (16 yo). I need suggestions on where to go and planning the route for our "road trip." I am flying into and out of San Juan. We have 10 days excluding fly in/out days. Arriving 12/21. Departing 1/1. I have been San Juan twice. This is her first time. The idea is to take a road trip and rent a car at the airport and then return to SJ a day or so before New Year's Eve. What route do you suggest? Should we be going to Vieques or Culebra? Do we need reservations for lodging during this high season? I like the idea of just getting someone and then deciding where to stay but given this is Christmas week, will I be stuck? Thank you!! Any suggestions are much appreciated.