My friends built one and have been using it for looking for scallop beds around Boston Harbor Islands. It's pretty fun to ride on.
http://books.google.com/books?id=x9MDAA ... &q&f=false
The video does not do it justice as the GoPro isnt great in low light. I need to do another video run in the winter time when the visibility is better and the sun is out.
http://www.youtube.com/watch?v=ioVsoac2 ... e=youtu.be