I made it. After standing around nervously chatting on the pier, we boarded our aquatic vessel and set out for the sight-seeing tour.
If my recollection serves correctly, we set out from Kachidoki. Our vessel had an outdoor observation deck on the top, which is where I spent the majority of my time.
Free beer and snacks meant I filled my belly and spent a fair amount of the evening heckling the cute English-speaking waiter boy for more beer...when I wasn't chatting up various members of the company or snapping ample photos of the gorgeous view, of course.