Sanibel is a city in Lee County, Florida, United States, on Sanibel Island. The population was 6,064 at the 2000 census, with an estimated 2006 population of 6,066. It is part of the Cape Coral–Fort Myers Metropolitan Statistical Area. The main town is at the eastern end of the island. The city was formed in 1974 as a direct result of the main causeway being built in 1963 to replace the ferry, and the rampant construction and development that occurred afterward. Developers sued over the new restrictions, but the city and citizens prevailed in their quest to protect the island. The only buildings above two to three stories now on the barrier island were built during that period. The city is on Sanibel Island on the Gulf coast of Southwest Florida, and is linked to the mainland by the Sanibel Causeway. A short bridge over Blind Pass links Sanibel to the unincorporated town of Captiva on Captiva Island. More than half of the two islands are preserved in its natural state as wildlife refuges. Visitors can drive, walk, bike, or kayak through the J. N. "Ding" Darling National Wildlife Refuge. The island's most famous landmark, the Sanibel Lighthouse, is located at the eastern end of the island, adjacent to the fishing pier. The main thoroughfare, Periwinkle Way, is where the majority of stores and restaurants are located, while the Gulf Drives (East, Middle and West) play host to most of the accommodations. The Sanibel-Captiva Conservation Foundation, a not-for-profit organization, has also been a key player in helping to curb uncontrolled commercial growth and development on the island. Since 1967, SCCF has been dedicated to the preservation of natural resources on and around Sanibel and Captiva and has led efforts to acquire and preserve environmentally sensitive land on the islands including critical wildlife habitats, rare and unique subtropical plant communities, tidal wetlands, and freshwater wetlands along the Sanibel River. The most serious hurricane damage in 44 years (since Hurricane Donna in 1960) occurred in August 2004 when Hurricane Charley struck to the north. Thanks to the city's very strict building codes, very few buildings were seriously damaged, and none were destroyed. Residents who left before the August 13 storm were not allowed back by the city government until August 18, due to hundreds of downed non-native Australian pine trees and power lines, and the lack of potable water and sanitary sewer. A temporary city hall for Sanibel was set up on the mainland in a Fort Myers hotel, until utilities and transport could be restored to the island. A new three-part causeway bridge to Sanibel was completed during the Summer of 2007, and the high-span section replaced the original drawbridge. The city's best-known resident is former CIA Director Porter Goss, who spearheaded the island's incorporation, became its first mayor, and represented the area in Congress from 1989 until his appointment as CIA Director in 2004.