flotsamist n.— «Where and when something reaches shore depends mainly on weight, wind, and currents. Experts can study flotsam—driftwood, in particular—that help them understand ocean currents and weather patterns. Nature also provides...
strainer n.— «Sweepers—clumps of branches or roots that hang out over the water or jut up out of it—are to be avoided. They are dangerous. The current can pin a person against them. In a worst-case scenario, sweepers can push a person...