In 1992, the town of Longboat Key bought these four islands, totaling 74 acres, after a grass-roots citizens group formed the Sister Keys Conservancy to lobby for their protection. The islands were restored with native plants, wetlands, salt marsh and gopher tortoise habitat. It is one of the rare places where the natural abundance of Southwest Florida is still in full bloom.

Never doubt that a small group of thoughtful committed citizens can change the world. Indeed, it is the only thing that ever has.

Margaret Mead, Anthropologist (1901-1978)

A Longboat treasure

In the 1890s, the first leg of the Gulf Intracoastal Waterway was created to transport produce from Sarasota to the Tampa Bay market. The project skirted two large mangrove islands called the Otter Keys and would generate the spoil that would be the basis of the uplands we now call the Sister Keys.

At one point, a disgruntled owner was said to have bulldozed many of the mangroves because he wasn’t allowed to build on the islands. During World War II, the flats surrounding the island were used by bombers for target practice and craters still exist as deep blue holes on the verdant green grass flats. In the 1960s, the islands were owned by a group of investors that intended to create a tropical resort they dubbed Shangri Isles. The development would have transformed the Keys with a marina, 18-hole championship golf course, luxury homes, a hotel and an airport.

Fortunately, economics dictated a different course for the islands and the plants and animals that called it home. Over the next two decades the islands would remain essentially the same except for seeds and flotsam brought there by the birds, wind and tides. In the late 80’s the islands went on sale, advertised as a “tropical paradise” where 80 acres could be developed. This was a time when a spurt of development came to the area and Tidy Island on the east shore of the bay sprouted homes at the expense of the mangroves. An adjacent island Jewfish Key was also undergoing development and blue septic tanks that would be buried for future homes dotted the shore on platted lots.

This activity caused a group of citizens to posit the question: “Wouldn’t it be nice to have at least one island in the bay that didn’t have a house on it?”  In 1989, those progressive citizens became the Sister Keys Conservancy and lobbied for two years to raise money and awareness to buy and protect the islands.

Sister Keys: Through the Years

A Retrospective in Images and News Clippings


This Sister Keys website has been created to inform and inspire current and future generations to enjoy and protect the Sister Keys, a group of four islands in north Sarasota Bay. It also shows what an idea backed by people’s passion can accomplish. Thanks to the diligent efforts and generosity of The Sister Keys Conservancy, members of the Spoonbill Club, the Longboat Key Town Commission, Mote Marine Laboratory and the people of the Town of Longboat Key, these islands will forever be protected from development and preserved as a wildlife and nature preserve.


Take a flight over the Sister Keys to see the current state of this preserved treasure for future generations.

Sister Keys Archival Aerials

These photos show the Sister Keys in their almost original state (bottom left). The first leg of the Gulf Coast Inland Water in the late 1800’s added dredging spoil to the two original islands that created what we see today.


Rusty Chinnis, (941) 650-0318, [email protected]

James Linkogle, Town of Longboat Key, (941) 316-1988, [email protected]

Website by Rough & Ready Media

In Memoriam

The Sister Keys wouldn’t have been possible without the support of a number of special people who are no longer with us but live on in the legacy of the Sister Keys.

Virginia Sanders

Anna (Miller) Tiller

Penny Rosenthal

Jim Brown

Sunday Crew

Harriet Josenhanss

Jeanette Nicol

Laura Poe