If you are a US citizen, you don’t need a passport to visit. Everyone speaks English, you can use the American dollar and there are many similar stores/foods that kids enjoy.
One of our favorites is El Conquistador Resort with its stunning private island beach, private onsite waterpark, pools, restaurants, and kids’ activities.
The perfectly walkable Old San Juan can charm any age with its colorful buildings, forts to explore, ice cream to indulge in, well-cared-for cats to say hello to and plenty of entertaining history.
Calle de la Fortaleza puts on an overhead display with flags/butterflies/lights in front of the governor’s mansion. It makes a fun photo spot and memory of your Old San Juan with kids’ adventure.
Flamenco Beach is one of the top beaches in the world. Features lifeguards, restrooms, kiosks for food, small to no waves, and great snorkeling. Also features an old military tank which is fun for photos.