Green harbor

Green Harbor Beach is Marshfield's southern ocean beach, a mile of sand at the mouth of the Green Harbor River, running north from the Duxbury Beach line up toward the working fishing village and marina at Green Harbor itself. There is a jetty on the northern end with long views down the beach and across the channel, and it is a nice, quieter alternative if Duxbury Beach next door feels too crowded. The marina inland has been a working small-craft harbor since the 1880s, and the neighborhood still has a bit of that old fishing-village character to it, distinct from the more residential feel of Brant Rock to the north. Piping plovers nest here in season, so keep an eye out for roped-off areas protecting their habitat.