The 23rd Annual Coney Island Mermaid Parade will take place on Saturday June 25. http://www.coneyisland.com/mermaid.shtml
I went to the parade last year, and it was alot of fun - it was also my first visit to Coney Island. I arrived by subway, and enjoyed a birdseye view of the Astroland Cyclone and Wonderwheel as the train pulled into the elevated station. The parade consisted of ocean-themed floats and costumed performers. There were dozens of people dressed in homemade costumes of mermaids and other sea creatures. After the parade, I had a hotdog at the original Coney Island Nathans and then checked out the nearby New York Aquarium.
I think that this would be a fun outing for AA members. If you've never been to Coney Island, this would be an ideal time! Besides the parade and the aquarium, there is the boardwalk arcade, the circus sideshow, and of course Astroland! If you'd be interest in going, post here and we can arrange a time/place to meet on the 25th.