Founded in 1521 by Ponce de León, the capital of Puerto Rico, San Juan, is the oldest city in US territory. Home to 1.6 million (more than a third of the island's citizens), it is also the heart of Puerto Rican tourism. What draws travellers here year-round are miles of smooth, clean beaches, a wide range of accommodation, fabulous restaurants and, of course, Old San Juan, whose beautifully restored historic sights surrounded by crashing turquoise surf are reason enough to make a trip to Puerto Rico.

Along with Old San Juan, resort-filled Condado is the most popular neighbourhood for visitors thanks to its excellent beachfront and fine boutiques, and these two sections of the capital share the highest concentration of restaurants and lodging options. There's also much to explore as the city extends to the south and east, including the beachfront neighbourhoods of Ocean Park and Isla Verde; up-and-coming Santurce with its numerous art galleries; the financial district of Hato Rey; and the college-town vibe in Rio Piedras.

Within just a couple hours' drive from San Juan are Puerto Rico's rarest natural resources and some of the best beaches and coral reefs in the Caribbean. The El Yunque rainforest, Luquillo Beach and the Rio Camuy Cave Park all make excellent day trips.

To me a beautiful place to go away on a couples retreat if you find that as something you would want to do.