After looking all over for two days, I ended up back at the first place that I had seriously considered. At Pier 45 Shed A, there is a museum of antique coin operated arcade machines with everything from fortune telling machines from amusement parks (like the one in Big) to miniature scenes made of toothpicks to classic video games. Behind the museum is a World War II submarine (USS Pampanito) and Liberty ship (SS Jeremiah O'Brien)- some of the scenes from Titanic were filmed using this ship and some of the audio effects came from it as well. Alcatraz can be seen in the middle of the bay and is a backdrop in the picture of the scattering of his ashes.
A fellow Latin teacher took the pictures and I said a little prayer after the scattering. I didn't know it would be so hard to pick a place that I considered to be "perfect" for him - and then to walk away afterward. I'm lucky to have good friends who are so very supportive and offered the help and hug that I needed. I thought it was appropriate for me to finally take him to a big JCL/Latin event and I just liked all of the elements that came together in one place and at one time. The scattering took place on 7/26/09 at a little after one in the afternoon. Requiescat in pace.