The cache is NOT at the posted coordinates. Although all caches appear to be hidden in the Great South Bay, they are not at these posted coordinates - no swimming is required to obtain any cache in this series 
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Welcome to the Geocachers of Long Island (GoLI) Geo-Art series.
The Geo-Art is modeled after the Montauk Point Lighthouse. It's the oldest lighthouse in New York State, authorized by the Second Congress, under President George Washington, in 1792. Construction began on June 7, 1796, and was completed on November 5, 1796. It is designated as a National Historic Landmark and still serves as an aid to navigation. And it's pictured on the GoLI logo.
This series is chock full of Long Island trivia, interesting facts, places, people and heritage. The questions are all multiple choice. If you're not sure of the answer, an internet search should make it easy. You can use the solution checker at the bottom of the page to confirm your answer. If you get it wrong, just try again. The hides are all very easy too, though are all hidden in residential neighborhoods. Please be stealthy, and if asked, explain honestly what you're doing. Once you find all 30, your Geo-Art reward will be completed. The caches are numbered in this series, the order that you find them is not important. Upon completion of this series, you will earn a GoLI Geo Art mini coin AND earn the GoLI Geo-Art souvenir to post on your profile! The link to the GoLI Geo-Art souvenir is on the cache page of Geo-Art cache page #30.
Question #5: A ghastly event took place on November 13th 1974, that would later become part of a hoax that would lead to a best selling book and movie based on a town on Long Island. On that night, six members of the DeFeo family were murdered in their beds by a family member. Another family moved into the house and claimed they had 'supernatural experiences' that prompted them to leave the place. Their account became the subject of the book 'The Amityville Horror'.
The address of the “Amityville Horror” house has been changed at least twice to prevent out-of-towners from stopping by. What was the original address?
108 Ocean Ave. - N 40° 39.469' W 073° 25.190'
112 Ocean Ave. - N 40° 39.649' W 73° 25.910'
412 Ocean Ave. - N 40° 39.946' W 073° 25.019'