So we're swim training last night, which means we swim around the buoys at a local beach (about 800m). We're always very careful to stay inside the buoys because it's summer and there's lots of boat traffic. So I'm waaaaayyy out in the deep water, already having a tough time because of the boat chop when I hear an engine start nearby and realize there's a HUGE ski boat parked right in the middle of the swimming area, well inside the buoys. This massive hull starts to swing in my direction, and I begin shouting and waving my arms as best I can while treading water. They must have seen me, because they kept turning and TORE out of the swimming area. It's so fortunate there was no one in the water in their path.
That's the first time I've seen a boat come inside the buoys and it scared the c**p out of me. Thanks heavens for my shocking pink swim cap.