Farlington Marshes is an area of reclaimed land in Langstone harbour

Langstone Harbour

Langstone Harbour is an inlet of the English Channel in Hampshire, sandwiched between Portsea Island to the south and west, Hayling Island to the south and east, and Langstone to the north. Geographically it is a ria....

. It was reclaimed from the harbour in 1771 and includes a larger part of what was formerly Binner's Island (the remainder of the island is now referred to as North Binness Island

North Binness Island

North Binness Island is an island in Langstone Harbour It is long and up to wide but only rises to above Ordnance Datum The island was originally part of Binner's Island. The island has been uninhabited in recent times but there is evidence of historical occupation...

). Farlington Marshes is about 120 hectares in size and features both freshwater marsh

Freshwater marsh

A freshwater marsh is a marsh that contains fresh water. They are usually found near the mouths of rivers and are present in areas with low drainage. The Florida Everglades, the largest freshwater marsh in the United States, are an example of this type of marsh....

 and brackish marsh

Brackish marsh

Brackish marshes develop by salt marshes where a significant freshwater influx dilute the seawater to brackish levels of salinity. This commonly happens upstream salt marshes by estuaries of coastal rivers or near the mouths of coastal rivers with heavy freshwater discharges in the conditions of...

. It is a nature reserve and is a feeding ground for overwintering Brent geese.