La Paz is one of the most beautiful towns of northwestern Mexico, and tourism now plays a major role in the city’s economy. The Gulf of California is home to over 800 species of fish, including giant manta rays, whales, dolphins, and sea lions. In the mountains behind the city the Sierra De La Laguna Biosphere Reserve is home to an incredible abundance and diversity of flora and fauna, including species unique to the area. The city has an aquarium, two marinas, museums, theaters, and an art institute. The Las Californias Library is located within the former Government Palace, and holds the most important manuscript collection on the region’s history.