On your second day, take advantage of San Juan's beautiful beaches. Head to Urbiztondo Beach, known for its golden sand and great surf. Whether you're an experienced surfer or a beginner looking to try it out, there are plenty of surf schools and rental shops available. Spend the day riding the waves, sunbathing, or simply enjoying the beach atmosphere. If you're not into surfing, you can also try other water activities like paddleboarding or kayaking. In the evening, indulge in some delicious local seafood at one of the beachfront restaurants and enjoy the stunning sunset views.