Biscayne Bay is a lagoon with characteristics of an estuary located on the Atlantic coast of South Florida. The northern end of the lagoon is surrounded by the densely developed heart of the Miami metropolitan area while the southern end is largely undeveloped with a large portion of the lagoon included in Biscayne National Park.

South Florida, sometimes colloquially shortened to SoFlo, is the southernmost region of the U.S. state of Florida. It is one of Florida's three most commonly referred to directional regions; the two others are Central Florida and North Florida. South Florida is the southernmost part of the continental United States and the only region of the continental U.S. that includes some areas with a tropical climate.