North Binness Island is an island in

Langstone Harbour Langstone Harbour is a biological Site of Special Scientific Interest in Hampshire. It 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 Langs ...

It is long and up to wide but only rises to above

Ordnance Datum In the British Isles, an ordnance datum or OD is a vertical datum used by an ordnance survey as the basis for deriving altitudes on maps. A spot height may be expressed as AOD for "above ordnance datum". Usually mean sea level (MSL) is used fo ...

The island was originally (along with a large part of

Farlington Marshes Farlington Marshes is a Local Nature Reserve in Portsmouth in Hampshire. It is owned by Portsmouth City Council and managed by Hampshire and Isle of Wight Wildlife Trust. It is part of Langstone Harbour, which is a Site of Special Scientific Int ...

) part of Binner's Island. The island has been uninhabited in recent times but there is evidence of historical occupation. A long earthwork on the island has been suggested to date from the 18th century. There is also archaeological evidence that suggests the island was occupied during the Bronze Age and the Roman period. Finds from the Bronze Age include evidence of a salt works. The Island and has also produced finds dating back to the Mesolithic period prior to the formation of Langstone Harbour and the island. The island was formerly home to a pond which is now filled with mud. Plants on the island consist of salt-water grasses and a few trees. In 1978 the island along with the other islands in Langstone harbour was acquired by the

Royal Society for the Protection of Birds The Royal Society for the Protection of Birds (RSPB) is a charitable organisation registered in England and Wales and in Scotland. It was founded in 1889. It works to promote conservation and protection of birds and the wider environment throug ...

who turned it into a bird sanctuary. Since that time unauthorised landings have been forbidden.

References

{{Commons cat, North Binness Island Islands of Hampshire Borough of Havant