The capital city of Puerto Rico, San Juan, is one of the busiest ports in the Caribbean and a third of all Puerto Ricans live here. Nearly every visitor to the island arrives at San Juan, many on cruise liners. The port is the largest home-based cruise port in the world, hosting 28 vessels with more being added to the list each year. San Juan is divided into three distinct districts: Old San Juan, the historic walled city; the beach and resort area; and the outlying suburbs. Tourists are concerned mainly with Old San Juan, site of most restaurants, shops and entertainment venues, and the beaches. The old city is linked to the new by a series of modern highways, leading to the Condado beach front, which is reminiscent of Florida's Miami Beach with its high-rise hotels and apartment blocks. It is not only tourism that keeps the financial mills grinding in San Juan. The city is an important centre for petroleum and sugar refining, brewing and distilling, and manufacturing of cement, pharmaceuticals, metal products and tobacco products. In the midst of all the hustle and bustle there are numerous attractions to amuse, entertain and interest the many tourists, and the city is a perfect base for exploring the rest of what this small Caribbean island has to offer.