The Cape is called the Ocean's Graveyard. One fifty-mile stretch alone has over 3,000 shipwrecks. People would run out after the ships had crashed to steal the cargo and items on any dead men who had washed ashore. The winter meant as many as two wrecks a month and people who managed to swim ashore would freeze on the sand.
(
http://www.nps.gov/caco/learn/historyculture/shipwrecks.htm)
Call of Cthulhu Adventure? Shadow over Innsmouth mentioned Fiji cultists were there. Or Delta Green, for a more "frozen in time" feel.
Quotes!
"Lighthouses, from ancient times, have fascinated members of the human race. There is something about a lighted beacon that suggests hope and trust and appeals to the better instincts of mankind"
Easily manipulated by a corrupted keeper, like some weird tweed-wearing siren.
"East of America, there stands in the open Atlantic the last fragment of an ancient and vanished land. Worn by the breakers and the rains, and disintegrated by the wind, it still stands bold." The Cape, historically, was a dark, harsh, lonely place. It reminds you of that occasionally.