Private Island

Private Island for Sale

East Sister Rock Island


Sale $ 9,900,00  /  Rent $ 15,000 Monthly

Enjoy a Private Island paradise located approximately one quarter mile off shore the city of Marathon in the Florida Keys. At MM 50 East Sister Rock Island is a ¼ mile off the Atlantic shore of Marathon. On the private island sits a dream come true getaway home with 5000+ square feet of living area including a 2700 square foot veranda, boat dock (fisherman's dream), helicopter launch pad and many more surprises.


The Private Island is on the Atlantic Ocean breeze. The island is only a three minute boat ride from the mainland dock and parking. The Marathon has numerous shopping centers, fine and casual dining with newer need to dress up.
Approximately two hours from Miami and only forty five minutes fromKey West, you are right in the heart of the Florida Keys. And if you want to explore the surrounding reefs, you can go fishing or diving on a boat of  21 foot "Carolina skiff" that's included with the sale.

The Private Island is surrounded by coral reef which makes water sports hard to ignore. Snorkeling and scuba diving from the island itself or and the charted coral reef just minutes away by boat. For the fisherman, East Sister Rock Island is ideal. Between the island and the mainland; pods of permit and bonefish thrive and the flats. World renowned tarpon fishing at the Seven Mile bridge is only a five minute boat ride to the west. To the south lies the Gulf where the deep sea angler can battle sailfish, dolphin, marlinand Wahoo, or simply relax and enjoy the secluded tropical charm of the island. Watch the sun climb out of the ocean in the morning and sink to the most spectacular sunset you have ever seen.


"3 bed/2bath, open living areas, high ceilings, sliding glass-doors and wood floors throughout.
The property also features: 2 boat docks including 1 in mainland, a boat, a helicopter launch pad,
a guest house 1/1, a pool and Caribbean landscape".










Local Area Attractions

Bahia Honda State Park

MM 37, Big Pine Key. Voted 2nd best beach in the US last year. Beautiful white sand beach.

Children's Museum of the Florida Keys

MM 55, 743-9100. Come & visit this tropical natural museum designed exclusively for children. Nature trail & interactive exhibits.

Dolphin Research Center

MM59, Grassy Key, 289-0002. Swim with the Dolphins! Reservations required.

Key Colony Beach Golf Course

MM 53.5, Key Colony Beach. 289-1533. Nine hole, par three course. No tee times. Club rental available.

National Key Deer & Great White Heron Wildlife Refuge

MM 31.5, Big Pine Key, 872-2239. Home for the Tiny deer that stand 2.5' tall & weigh less than 70 pounds.

Pidgeon Key Historic Site

289-0025. Originally settled in the 1900's by workmen from Henry Flagler's Overseas Railroad project.


About Marathon



Marathon Key - 12, 269
Key Colony Beach - 977
AREA/ELEVATION - 6 square miles, 7 feet
Beside its new concrete counterpart, the old Seven Mile Bridge jets into the sea like a giant fishing pier, inviting anglers, walkers and nature lovers to enjoy one of the Florida Keys most scenic and historic treats.
The blue-green panorama of gulf and ocean, dotted with lobster traps and sailboats, is not unlike the setting viewed by passengers traveling on Henry Flagler's Overseas Railroad from 1912 until 1935.
Off the large key north of the bridges is some of the best fishing and sport diving on the continent. And several top resorts offer luxury accommodations - and a centrally located home base in the Keys.
This is Marathon... "Heart of the Florida Keys."
Marathon boasts the conveniences of a modern community - a 58-bed hospital, shopping plazas and the only commercial airport between Key West and the Florida mainland - but retains the charm of its roots as a 19th - century fishing village. And it's growing as a tourist resort, a phenomenon local officials say is natural.
Before dusk, residents and visitors alike gather at boat docks to survey fishermen's daily catch and often the entree for their evening meal.
Numerous certified charter boat captains take visitors diving, snorkeling, fishing, sailing and touring along the only living coral reef in North America, several miles offshore in the Atlantic Ocean.
For landlubbers, an 18-hole championship golf course is open to members of country clubs elsewhere, with proper club identification. And all the trappings of outdoor subtropical living abound in Marathon - from bicycling to lounging on a hammock in the shade.
Marathon is home to Crane Point Hammock, a 63.5 acre land tract that is one of the most important historical and archaeological sites in the Keys. The area contains evidence of pre-Colombian and prehistoric Bahamian artifacts, and once was the site of an entire Indian village. On site is the Museum of Natural History of the Florida Keys and an adjoining children's museum.
Another historical site, recently opened to the public is Pigeon Key, an tiny five-acre island nestled below the old Seven Mile Bridge. Step onto Pigeon Key and step back into history to the key that was home to the men that built Henry Flagler's Overseas Railroad.
Marathon also is home to the Dolphin Research Center and the Turtle Hospital. Both play important roles in the preservation of indigenous Keys' marine life.
Utilizing Marathon as a home base, visitors may take easy day trips to Key West and the Upper Keys. No island or attraction in the Keys is more than 60 minutes away.
And just south of Marathon, the new Seven Mile Bridge, which runs parallel to its venerable forerunner, is the longest segmental bridge in the world.
Each year, in April, Marathon hosts the annual Seven Mile Bridge Run, with 1,500 running aficionados competing in a foot race over the azure waters of the Atlantic Ocean and Gulf of Mexico.


How to get to the Island?

Though the area has been settled for some time, Marathon is a relatively new city, incorporated in 1999. The city set its boundaries "from the east end of the Seven Mile Bridge to the west end of Tom's Harbor Bridge". Among the islands found within the city limits Marathon include Boot Key, Knight Key, Hog Key, Vaca Key, Stirrup Key, Crawl Key, Little Crawl Key, East and West Sister’s Island, Deer Key, Fat Deer Key, Long Point Key, and Grassy Key.

By Plane

Frequent service to Marathon is provided by American Eagle out of Miami. Non-stop service out of Tampa is available on USAir. Marathon services a private airport. Connecting service can be made for nearly anywhere in the world.
Airlines servicing the Marathon Airport are:
American Eagle (800) 433-7300
US Air (800) 428-4322
With the completion of the new $7-million passenger terminal building, a new era in Marathon aviation begins. Built during World War II by the Army Air Corps for bomber training, the Marathon airport also serves private aircraft. If you fly your own plane, you'll find a full-service F.B.O. with both jet and aviation fuels, maintenance, tie down, pilot and passenger facilities.

By Car

From the north, take the Florida Turnpike south along the east coast down to just below Ft. Lauderdale to Exit 4 - Homestead/Key West. This is the Turnpike Extension that meets US 1 in Florida City, which takes you to Marathon, some 90 minutes south. From the west, come across 1-75 (Alligator Alley) to the Miami exit and south to the Turnpike Extension. From Miami International Airport, take LeJeune Road south to 836 West, going to Turnpike Extension, south to US 1 and to the Keys.

Mile Markers. Often abbreviated as MM, Mile Markers are conveniently located along the Overseas Highway (US1). Appearing on the right shoulder of the road as small green signs with white numbers, the markers begin at Mile Marker 126, just one mile past Florida City on US1.

Major rental car companies will help you quickly begin your tour of paradise. Renting a car here saves the drive from Miami,and the rates are about the same.

Taxi cabs - even a water taxi - whisk you to anyplace you can reach by road or waterway.




Key Largo          60 minutes

Tavernier           40 minutes

Islamorada         30 minutes

Duck Key           15 minutes

Big Pine Key       25 minutes

Lower Keys        35 minutes

Key West           60 minutes




By Boat

Boaters can travel to Marathon either along the Intracoastal Waterways through Florida Bay or along the Atlantic Coast. The Keys are full of marinas that welcome transient visitors. Be sure to make reservations in advance.
Though the area has been settled for some time, Marathon is a relatively new city, incorporated in 1999. The city set its boundaries "from the east end of the Seven Mile Bridge to the west end of Tom's Harbor Bridge".
Among the islands found within the city limits Marathon include Boot Key, Knight Key, Hog Key, Vaca Key, Stirrup Key, Crawl Key, Little Crawl Key, East and West Sister’s Island, Deer Key, Fat Deer Key, Long Point Key, and Grassy Key.
The name Marathon dates back to the origin of the Florida East Coast Railroad. The name came about by the railroad workers who were working night and day to complete the railway – due to the unrelenting pace and struggle to complete the project, many of the workers complained that “this [the project] is getting to be a real Marathon”, and was later used to name the local station along the railroad.



News- Video



Have you ever wished that you owned your own Island? Well, The East Sister Rock Island is what we at Century 21 would consider to be an ideal choice for those looking for an island to call their own. Located in the beautiful and exotic Florida Keys, The East Sister Rock Island is a private island that is not only a perfect place to get away, but it is conveniently close to the city of Marathon. It is easily reachable by boat, so trips to the main city and back will take very little time which is much better than having an island in the middle of nowhere. The Island as a whole is 1.5 acres and can easily provide living space for an average single sized family which includes four rooms, four bathrooms, as well as a guest house in-case you have some visitors that you would like to have stay with you to marvel at the beautiful surroundings and just relax or get away.



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