Tourism is a major industry of the region, owing much to the area's mild Mediterranean climate. Tijuana alone is the most visited city in the Western Hemisphere, second only to New York City. 50,000,000 people visit the city each year and about 300,000 visitors cross by foot or car from the San Ysidro point of entry to Tijuana every day. Balboa Park, the San Diego Zoo, SeaWorld, the San Diego Zoo Safari Park, Legoland, the city's beaches, and golf tournaments hosted in the region such as the Farmers Insurance Open are just some of the major tourist destinations in the conurbation. Mexico's drinking age of 18 and legal and regulated prostitution make Tijuana a common weekend destination for many young Southern Californians and sex tourists.