"Richard Casady" wrote
You must not have boxboats where you do your boating. Surfaced
submarines at high speed are probably the worst.

You mean container ships? None of those here. No subs either. We get a lot
of these http://blizzard.zmm.com/tug/capned2.jpg but their wakes aren't bad.
(Good idea to stay clear of the propwash, though.)