塩沼
Northward from Stage Island can be seen salt marsh stretching to the horizon interspersed with tidal creeks. At low tide shellfishing takes place in the intertidal flats, typically of individuals digging for clams, which are cooked and sold in all the restaurants of the region. Salt marsh features Spartina alterniflora (smooth cordgrass) and Spartina patens (marsh hay). Along the south of Plum Island some haying continues, whether government-sponsored or associated with private ownership or leases.