Plum Island Road is a hiking, biking, and horse trail in Essex County, Massachusetts. It is within Parker River Wdlf. Refuge. It is 0.6 miles long and begins at 7 feet altitude. Traveling the entire trail is 1.2 miles with a total elevation gain of 32 feet. Near the trailhead there is parking. The Sandy Point State Reservation conservation can be seen along the trail. There is also a wetland along the trail. Near the end of the trail are a farmland, rocks, a wood, and a beach.