If you get 2 boats be sure to get a recording of the bugle reveille. We did this back in the 90's and planted a ghetto blaster (volume cranked way up!) in the other boat at 4 in the morning. We put it on a casette tape with a long period of no sound to give us a chance to get back to our boat. The cursing and swearing was hilarious as they stumbled around in the dark trying to find the source of the sound