Thoreau writes in his journal:
In the afternoon I sailed to Plymouth, three miles, notwithstanding the drizzling rain, or “drisk,” as Uncle Ned called it. We passed round the head of Plymouth beach, which is three miles long. I did not know till afterward that I had landed where the Pilgrims did and passed over the Rock on Hedge’s Wharf. Returning, we had more wind and tacking to do . . . It being low tide, we landed on a flat which makes out from Clark’s Island, to while away the time, not being able to get quite up yet. I found numerous large holes of the sea clam in this sand (no small clams), and dug them out easily and rapidly with my hands . . . At 10 P.M. it was perfectly fair and bright starlight.