In past Gloucester Schooner Festivals I've taken as many as 400 pictures and most of the time while navigating my boat through the hundreds of spectator vessels of all types shapes and sizes. The last two years I left the navigation to my nephew Seth while I concentrate on taking pictures. I actually take less pictures, 200 this year. I suppose it's due with experience knowing what I'm looking for and how the light interacts with the subject.
USS Fort McHenry