South Beach is a neighborhood in the city of Miami Beach, Florida, United States. It is the area south of Indian Creek and encompasses roughly the southernmost 23 blocks of the main barrier island that separates the Atlantic Ocean and Biscayne Bay. This area was the first section of Miami Beach to be developed, starting in the 1910s, thanks to the development efforts of Carl G. Fisher, the Lummus Brothers, John S. Collins, and others. The area has gone through numerous man-made and natural changes over the years, including a booming regional economy, increased tourism, and the 1926 hurricane, which consequently destroyed much of the area.
South Beach is traversed by numerical streets which run east-west, starting with First Street and the largely pedestrianized Lincoln Road (between 16th and 17th). It also has 13 principal Roads and Avenues running north-south, which, from the Biscayne Bay side, are Bay Road, West Avenue, Alton Road, Lenox Avenue, Michigan Avenue, Jefferson Avenue, Meridian Avenue, Euclid Avenue, Pennsylvania Avenue, Drexel Avenue, Washington Avenue, Collins Avenue (Florida State Road A1A), and Ocean Drive. There are three smaller avenues (that do not run the entire length of the beach) in the Collins Park area, named Park, Liberty, and James. Most locals agree that South Beach's northern boundary runs along Dade Boulevard from Lincoln Road on the bay side of the island, and heads east-north-east until it connects with 23rd Street, which forms the northern boundary on the ocean side.