I must admit, I will be a little bias here since I am from Puerto Rico. That's where I grew up and my family still lives in the "Isla Encantada" or Enchanted island as the natives call it.
San Juan has one of the largest cruise ports in the world is therefore many tourist limit themselves to visiting the "Old San Juan". It is a very romantic city with cobblestone streets, one of the oldest churches in the Americas, many museums, restaurants, shopping and bars.
Photo: Hotel El Convento
There are plenty of things to do and see in the San Juan area but there are many hotels in other parts of the island that are ideal for a honeymoon as well. Here are a few of the most romantic (and exclusive hotels) around the island.
Top left is the San Juan Ritz Carlton, although not technically in Old San Juan it is very close to the airport and provides a private beach and beautiful pool and gardens.
Next is "El Conquistador" (the conqueror), it is located in the northeastern tip of the island in the town of "Fajardo" the resort has it's own small island of the coast and water park to boast.
Bottom right is a smaller hotel in "Rincon" (the west coast) called "Horned Dorset Primavera Hotel" it is very exclusive, private and on a beautiful west coast town called "Rincon" (corner). In fact this is the town where we vacation when I go home. The town attracts award winning surfers that catch the waves during the spring every year.
On the bottom left corner is "El Hotel Convento", located in Old San Juan it is a restored 350 year old Carmelite convent, it is the only hotel on the island in the "Small Luxury Hotel" category. Although not on a beach it does have a rooftop pool and excellent views of all the historic sites around Old San Juan. It is also a favorite to host weddings as it has a lovely interior courtyard.
Puerto Rico is a versatile island, relatively affordable, easy to navigate as most people speak English and no passports are required. The island is also home to some of the finest rum factories. You can top your tour of the Bacardi rum factory with free samples given on site.
Please feel free to ask if you have any questions about the island. Here are a few links to help you learn more about the island and all it has to offer:
Go to Puerto Rico-Official Tourism Page
Welcome to PR-More information about the island and towns
Meet Puerto Rico-PR Convention Bureau
Visiting Puerto Rico-Trip Advisor PR Page