We flew into San Juan and stayed for two nights. We're not much into big cities so we were excited to see some nature! We walked around Old San Juan and went to Castillo San Cristóbal. We rented a car and drove around the whole island. We had a little over 2 weeks to spend in PR and we literally ran out of things to do until our flight to The Virgin Islands. So if you're ever planning on going to PR and exploring the whole island plan on only staying less then a week.