Inlet, Gulf of Mexico, western Florida, U.S. The bay is 25 mi (40 km) long and 7–12 mi (11–19 km) wide, and it serves the recreational and commercial activities of Saint Petersburg on the western shore and Tampa on the northeast.
Hernando de Soto began his travels through the southeastern U.S. region when he reached Tampa Bay in 1539. Tampa Bay is spanned by the 15-mi (24-km) Sunshine Skyway Bridge.