Estero Island is an island

Island

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

 located in Lee County

Lee County, Florida

Lee County is a county located in the U.S. state of Florida. Located in southwest Florida, the principal cities in the county are Fort Myers and Cape Coral...

, Florida

Florida

Florida is a state in the southeastern United States, located on the nation's Atlantic and Gulf coasts. It is bordered to the west by the Gulf of Mexico, to the north by Alabama and Georgia and to the east by the Atlantic Ocean. With a population of 18,801,310 as measured by the 2010 census, it...

, on the Gulf

Gulf of Mexico

The Gulf of Mexico is a partially landlocked ocean basin largely surrounded by the North American continent and the island of Cuba. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. In...

 coast

Coast

A coastline or seashore is the area where land meets the sea or ocean. A precise line that can be called a coastline cannot be determined due to the dynamic nature of tides. The term "coastal zone" can be used instead, which is a spatial zone where interaction of the sea and land processes occurs...

 of Southwest Florida

Southwest Florida

Southwest Florida is a region of Florida , United States located along its gulf coast, south of the Tampa Bay area, west of Lake Okeechobee and mostly north of the Everglades...

. It is bordered by San Carlos Island to the north and Big Carlos Pass to the south. The Matanzas Pass Bridge

Matanzas Pass Bridge

The Matanzas Pass Bridge is a bridge located in Fort Myers Beach, Florida. It carries State Road 865 between the Florida mainland and Estero Island, which is a major tourist destination. The bridge is one of the island's two connections to the mainland...

 is on the northern end of the island and connects Estero Island over Matazanas Pass to San Carlos Island. The Big Carlos Bridge (part of the Bonita Beach Causeway

Bonita Beach Causeway

The Bonita Beach Causeway is a series of four low-level bridges located in Southwest Florida connecting Bonita Springs with Fort Myers Beach. It carries Estero Boulevard and is four miles long from end to end. The Bonita Beach Causeway traverses three natural barrier islands bordered by the Gulf...

) connects the southern end of the island to Black Island (the northern limit of the city of Bonita Springs

Bonita Springs, Florida

Bonita Springs is a city in Lee County, Florida, United States. The population was 43,914 at the 2010 census. It is part of the Cape Coral–Fort Myers Metropolitan Statistical Area. The city is located on the southwest coast of the state....

).