The Bonita Beach Causeway is a causeway with a series of four low-level bridges located in Southwest Florida traversing the barrier islands of Estero Bay connecting the town of Fort Myers Beach with Bonita Springs.

Each bridge on the Bonita Beach Causeway is named after the body of water it crosses.

Estero Boulevard (which crosses the causeway) begins just south of the Bonita Beach Causeway on Little Hickory Island, splitting off from Hickory Boulevard (County Road 865).

After crossing the Little Carlos Pass Bridge onto Black Key, Estero Boulevard turns west and crosses the Big Carlos Pass Bridge, a small single-leaf drawbridge, onto Estero Island, and the town of Fort Myers Beach.

[1] Construction is underway on a replacement for the Big Carlos Pass Bridge.