We have visited San Juan, Puerto Rico a few times and here are some of our favorite places and recommendations in the area (in addition to ones linked below):
Restaurants :
-Condal Tapas
-SOCIAL @ Condado Ocean Club
-La Casita de Rones
-Ladi's
-Barrachina
-La Vergüenza Viejo San Juan
-Bistro Café
-Anita Gelato Condado
-Gustos Coffee Co.
Sightseeing:
-Isla Verde Beach
-Condado Beach
-Kayaking/Paddle Boarding at Laguna del Condado
-Distrito T-Mobile (Entertainment, Dining & Shopping)
-Museo de Arte Contemporáneo de Puerto Rico
-Calle Cerra
-Ron del Barrilito Rum Distillery
Historical Sightseeing:
-Castillo San Felipe Del Morro
-San Juan National Historic Site
-Castillo San Cristobal
-Museo Casa Blanca
-Museo de las Americas
If you want to venture out of the San Juan area:
-El Yunque National Park
-Luquillo Beach & Kioskos
-Boat excursion to Icacos or Culebra islands
-Museo del Tabaco
-Museo del Cafe
-Waterfall Rappel & Zip Line Rainforest Excursions
-Cueva del Indio Natural Caves
Old San Juan is a great place to spend a few hours walking around to experience the history and culture. There are many museums, historic sites, restaurants and places to get an amazing cocktail.
This beach is located adjacent to the Condado Vanderbilt Hotel
Enjoy a scenic ferry & shuttle ride to Casa BACARDÍ departing from Pier 2 in Old San Juan. Or simply drive/uber. Casa Bacardi is the world’s largest rum distillery and offers tours, rum tastings, and mixology classes.
This company offers day trips to Icacos Island, Palomino Islands, Culebra, etc They provide food and beverages and snorkeling equipment. For those not renting a car, they can also provide round trip transportation from San Juan.
El Yunque National Forest has many hiking trails and excursions available. Passes purchased ahead of time are required.