Along the Eastern Seaboard, the exodus begins with sailors returning to Florida and the Carolinas from the Bahamas and the islands. After the end-of-season regattas and the parties, the migration starts as a trickle, but by month's end, a steadier stream begins to fill the Intracoastal Waterway as the snowbirds flock back north, running as much from hurricane season as in search of fine summer sailing on the Chesapeake and beyond.
If I were a sandpaper salesman, April would be my favorite month. Most sailors plan ahead and buy bottom paint and other supplies at the winter boat shows or when they go on sale at their local chandleries. But not sandpaper; that's a spur-of-the-moment, Saturday-morning sort of purchase, and in April, man, oh man, the sheets just fly off the shelves as do-it-yourselfers head down to the yard or marina to tidy things up for the season.