Access to Sanibel Island is primarily via the Sanibel Causeway, a three-mile series of bridges that connects the island to the mainland near Fort Myers, Florida. In 2026, the causeway has been fully restored following the significant repairs necessitated by Hurricane Ian in late 2022. The bridge features an all-electronic toll system; there are no cash booths, so you must have a SunPass, another compatible transponder (like E-ZPass), or you will be billed via "Toll-By-Plate" at a slightly higher rate (typically around $6.00 for a standard passenger vehicle). For those who prefer not to drive, there are various private shuttle services from Southwest Florida International Airport (RSW). Once on the island, the best way to "access" its different parts is via the extensive shared-use path system, which covers over 25 miles and is perfect for bicycles. While there are no public ferries from the mainland, private boaters can access the island via the Sanibel Marina or various public boat ramps, provided they adhere to the strict environmental regulations protecting the island's fragile coastal ecosystem.