RE: An Ocean-worthy vessel
I live on the east coast of Florida. I have never seen an RC boat that could run here unless you are talking about in bays and other protected areas. The open ocean at the beach would pile up my 16' boat with a 50 hp on it in seconds if I strayed that close to shore after going out through an inlet. Good luck, I would love to see a video of it but it would not last long unless you have a bunch of power to move it between wave crashings.
JIM