Depth: 30 feet. This is the red buoy in the outer harbor within sight of the Vietnam Memorial and Uncle Harvey’s Mausoleum. Thanks to my canoe-based support team, Jeff Greensmith and Sean MacManus, who towed me out there on my floaty raft. At the 1:18 mark you can see the concrete block the buoy is tethered to but the shot is brief as I didn’t want to dally.