Coney Island is neither an amusement park nor a beach: it's a sort of mythical territory. If you have seen Annie Hall, you will be on the verge of tears when you discover the old roller coaster. If you have read the sad stories of circus freak shows, you will love to see the remains of that era. If you just love empty beaches (not in summer), weird promenades and legends, this is your place.
I was in July and the beach was full!!! If you go to NY in summertime and you miss beach, this is your place, big sand beach with a wide wooden promenade. Of Course, the best for me was the decadent shops (most of them closed) and mystic Cyclone, take a look at the pictures!!!