>>532865Not trying to brag, but around the block from me is a public park with a public boat ramp into what the locals cryptically call "The Creek" (it's a natural creek that is used to cool the fuel rods at the local power plant). The Creek lets out to the bay, which then lets out to the ocean.
I'm building these so that I can just put the kayak on top and walk it to the ramp - no straps required.
http://www.instructables.com/id/Kayak-Wheels/ 