Feet Better — 4 39-

It was a riddle his late grandmother, Mira, had left him. She was a cartographer who believed the world was made of invisible lines. On her deathbed, she pressed the notebook into his hands and whispered, “Find the place where four things are each thirty-nine feet apart. That’s where I’ll be.”

: While many major channels are maintained at a minimum of 9 feet, actual depths can vary. Vessels with a 4-foot draft have been reported "skipping across the bottom" or touching in certain shallow areas, such as the Atlantic Intracoastal Waterway (AICW) or parts of the Trent-Severn Waterway Average Conditions 4 39- feet