The County of San Diego's efforts to make the region a great place to live help make it a great place for visitors as well. We invite you to explore the dozens of parks, preserves and trails we maintain, stay overnight at our campgrounds, or travel back in time to one of many historical sites and museums. If you spend time at one of San Diego's famous beaches, know that the County routinely checks water quality and posts findings online. We operate eight airports, including McClellan-Palomar, which offers a North San Diego County connection to Los Angeles International Airport.