The MB Heretic; 30'6" loa; 29' lwl; built by Marinette in 1963; welded aluminum; powered by a monster V8 through a Velvet Drive straight-through transmission. Call it a big boat or a small yacht, what ever you like. Delphine (RIP) and I had raised our kids and usually thought of it as an extended-stay, second-honeymoon, abode.
As Water Rat said: ""Believe me, my young friend, there is nothing—absolutely nothing—half so much worth doing as simply messing about in boats."
Up and down the Mississippi from the St. Croix River southward to the Keokuk lock for five or six nice years.