I'd like to build the 12'6' Kaholo and want to add a window so I can see what I'm supping over :)
Here's an example:
I thought I could maybe use fixed, lightweight portholes (one on the top, one on the bottom), seal them in, and enjoy the view. Another idea was to use plexiglass, and glass over that. What do you think? Possible? Only thing is, I'm not sure where they would go without compromising the design and stability.