Southampton Water is a tidal estuary north of the Solent and the Isle of Wight in England. The city of Southampton lies at its most northerly point, where the estuaries of the River Test and River Itchen meet. Along its salt marsh-fringed western shores lie the New Forest villages of Dibden, Hythe and Fawley, and the Fawley Refinery. On the slightly steeper eastern shore are the Southampton suburb of Weston, the villages of Netley and Hamble-le-Rice, and the Royal Victoria Country Park. To the south, Southampton Water enters the Solent between Calshot Spit and Hill Head.
River Hamble Country Park is a 144.1-hectare (356-acre) Local Nature Reserve which runs along the west bank of the River Hamble between the villages of Botley and Bursledon in Hampshire. It is owned by Hampshire County Council and managed by Hampshire Countryside Service. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, and of Solent Maritime Special Area of Conservation. Part of it is in Upper Hamble Estuary and Woods, which is a Site of Special Scientific Interest.
Eling and Bury Marshes is a 112.3-hectare (277-acre) biological Site of Special Scientific Interest between Totton and Southampton in Hampshire. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, and of Solent Maritime Special Area of Conservation.
Hurst Castle and Lymington River Estuary is a 1,077.3-hectare (2,662-acre) biological and geological Site of Special Scientific Interest near Lymington in Hampshire. It is a Nature Conservation Review site and two areas are Geological Conservation Review sites. Three areas are local nature reserves, Boldre Foreshore, Sturt Pond and Lymington and Keyhaven Marshes; the latter site is managed by the Hampshire and Isle of Wight Wildlife Trust. Part of it is North Solent National Nature Reserve. It is part of Solent and Southampton Water Ramsar site and Special Protection Area. Parts of it are in Solent Maritime and Solent and Isle of Wight Lagoons Special Areas of Conservation.
Hythe to Calshot Marshes is a 591.8-hectare (1,462-acre) biological Site of Special Scientific Interest which stretches along the west bank of Southampton Water between Calshot and Marchwood in Hampshire. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, and of Solent Maritime Special Area of Conservation. Calshot Marshes is a Local Nature Reserve and Hythe Spartina Marsh is a nature reserve managed by the Hampshire and Isle of Wight Wildlife Trust.
Lee-on-The Solent to Itchen Estuary is a 585.9-hectare (1,448-acre) biological and geological Site of Special Scientific Interest which stretches along the coast between Southampton and Gosport in Hampshire. It is a Geological Conservation Review site. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, and of Solent Maritime Special Area of Conservation. Three areas are Local Nature Reserves, Chessel Bay, Hook with Warsash and Mercury Marshes. One area is Hamble Common Camp, a Scheduled Monument.
Lower Test Valley is a 142-hectare (350-acre) biological Site of Special Scientific Interest near Totton in Hampshire. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, and of Solent Maritime Special Area of Conservation. It is a nature reserve managed by the Hampshire and Isle of Wight Wildlife Trust.
Lymington River Reedbeds is a 41.7-hectare (103-acre) biological Site of Special Scientific Interest in Lymington in Hampshire. It is a nature reserve managed by the Hampshire and Isle of Wight Wildlife Trust. It is part of Solent and Southampton Water Ramsar site and Special Protection Area.
North Solent is a 1,186.7-hectare (2,932-acre) biological and geological Site of Special Scientific Interest along the north bank of the Solent between East End and Calshot in Hampshire. It is a Nature Conservation Review site, Grade I. Part of it is in North Solent National Nature Reserve and two areas are Geological Conservation Review sites. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, and of Solent Maritime Special Area of Conservation. Boldre Foreshore is a local nature reserve.
Titchfield Haven is a 134.5-hectare (332-acre) biological Site of Special Scientific Interest north-west of Gosport in Hampshire. Most of it is a local nature reserve and a national nature reserve. It is part of Solent and Southampton Water Ramsar site and Special Protection Area.
Upper Hamble Estuary and Woods is a 151.2-hectare (374-acre) biological Site of Special Scientific Interest east of Southampton in Hampshire. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, and of Solent Maritime Special Area of Conservation. Part of the site is in Manor Farm Country Park, which is a Local Nature Reserve.
Boldre Foreshore is a 193.3-hectare (478-acre) Local Nature Reserve east of Lymington in Hampshire. It is owned by New Forest District Council and managed by the Hampshire and Isle of Wight Wildlife Trust. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, Solent Maritime Special Area of Conservation, Hurst Castle and Lymington River Estuary Site of Special Scientific Interest and Lymington and Keyhaven Marshes, a nature reserve managed by the Hampshire and Isle of Wight Wildlife Trust.
Calshot Marshes is a 51.1-hectare (126-acre) Local Nature Reserve near Calshot, at the junction of The Solent and Southampton Water in Hampshire. It is owned by Hampshire County Council and managed by Hampshire Countryside Service. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, of Solent Maritime Special Area of Conservation and of Hythe to Calshot Marshes Site of Special Scientific Interest.
Hook with Warsash is a 251.6-hectare (622-acre) Local Nature Reserve west of Fareham in Hampshire. It is owned by Hampshire County Council and managed by Hampshire Countryside Service. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, of Solent Maritime Special Area of Conservation, and of Lee-on-The Solent to Itchen Estuary Site of Special Scientific Interest.
Lymington and Keyhaven Marshes is a 738-hectare (1,820-acre) nature reserve which stretches from Keyhaven along the south coast across the Lymington River in Hampshire. It is managed by the Hampshire and Isle of Wight Wildlife Trust. It is part of Solent and Southampton Water Ramsar site and Special Protection Area. Some areas are part of two Special Areas of Conservation, Solent and Isle of Wight Lagoons and Solent Maritime and Solent. It is also part of Hurst Castle and Lymington River Estuary, which is a Site of Special Scientific Interest, and of North Solent Marshes Nature Conservation Review site, Grade 2. Two areas are Geological Conservation Review sites, and two are Local Nature Reserves, Boldre Foreshore and Lymington-Keyhaven Marshes.
Mercury Marshes is a 6.4-hectare (16-acre) Local Nature Reserve in Hamble-le-Rice in Hampshire. It is owned by Hampshire County Council and managed by Hampshire Countryside Service. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, of Solent Maritime Special Area of Conservation, and of Lee-on-The Solent to Itchen Estuary, which is a Site of Special Scientific Interest.
Sturt Pond is a 10.9-hectare (27-acre) Local Nature Reserve in Milford on Sea in Hampshire. It is owned and managed by Milford On Sea Parish Council. It is part of Solent and Southampton Water Ramsar site and Special Protection Area, of Solent Maritime Special Area of Conservation and of Hurst Castle and Lymington River Estuary, which is a Site of Special Scientific Interest.
West Hayling is a 76.2-hectare (188-acre) Local Nature Reserve on Hayling Island in Hampshire. It is owned by Havant Borough Council and managed by the council and the Royal Society for the Protection of Birds. It is part of Langstone Harbour, which is a Site of Special Scientific Interest. It is also part of Solent Maritime Special Area of Conservation and of Chichester and Langstone Harbours Ramsar site and Special Protection Area.
