There usually aren't any on these - its all people in uniforms, often flying their countries colors, whatever they are. They are often making their way to or from Newport, Rhode Island. The bikini-clad hotties are usually in the smaller speedboats or tiny cabin-cruisers. 
A good pair of binoculars is a must when you least expect it.
I bought on sale at the Spy Museum in DC a pair of glasses with a built in camera for under $50.00. I believe it is the one advertised for bird watching on TV.
We also picked up an adequate tripod for under $20.00.
The camera is almost as good as my expensive one and no need for a telephoto lens.
There is so much to see that one cannot get close enough to photo with a regular camera because of either crowds or police pushing people back too the point there is no reason to take a picture that will show people that are unidentifiable to anyone but the photographer.
I cannot afford a camera and the expensive lens so this is next best for me.
In my neck of the woods one never knows when some pollution or movie star will roll into town, Once a month someone will report seeing Johnny Depp but I would not know him in person from any other stranger.
I enjoy filming the big movers and shakers who can be identified by anyone.
With life changing so fast around us I would like to leave my kids not money---would if I could--but a glimpse into this time in history of things that will not be around when they become my age.
I took for instance a picture of the only red fire box left in town, then went looking for a real life phone booth, I found just one public phone on the outside of a gas station and it was out of order.
Before it was replaced I got pictures of the only swing bridge I have ever seen in my area from underneath to show the mechanism and how that sucker worked.
I love photography, some day I will take some classes in it, for now I must be content to take a picture of an old time metal ice cube maker that I have not seen in 30 years.