Coney Island  is a beach/peninsula located on the southern tip of Brooklyn. It is mostly known as the site for amusement parks.
The Cult of Cathulhu selected Coney Island as the most favorable location to summon Cathulhu under the required alignment of stars. The Ghostbusters utilized Astroland's Cyclone roller coaster to attract a lightning bolt and destroy Cathulhu.
At some point, a Fun House section of Coney Island was infested with vampiric entities called Evil Clowns. While the "queen" remained on Coney, the others hunted across New York City. The Extreme Ghostbusters eventually captured the nest and thus, restored its victims to normal. They set out to locate the victims on the island.
- In "Venkman's Ghost Repellers," while inside the New Jersey Parallelogram, Peter Venkman joked the way to the dome reminded him of rides he used to hate at Coney Island. 
- Egon Spengler (2009).The Real Ghostbusters- "The Collect Call of Cathulhu" (1987) (DVD ts. 13:36-13:43). Time Life Entertainment. Egon says: "According to my calculation, the most opportune place for the cult to perform the summoning ceremony is the southern tip of Brooklyn. Coney Island to be exact."
- Peter Venkman (2009).The Real Ghostbusters- "Venkman's Ghost Repellers" (1987) (DVD ts. 18:32-18:34). Time Life Entertainment. Peter says: "I used to hate rides like that at Coney Isand."