Mid Dorset and North Poole (UK Parliament constituency)

Gigger's Island is an island in Poole Harbour in the English county of Dorset. The island is situated near to the Frome and Piddle rivers, near to the opening of Poole Harbour. The entrance to the harbour is lit to the north of Gigger's Island. Historically, the island was part of the boundary of the parish of Arne, and in 2006, the island was purchased by the Dorset Wildfowlers Association. Landing on the island is only permitted below the high water mark, and at nighttime the island is sometimes home to 20,000 gulls.

The River Piddle or Trent or North River is a small rural Dorset river which rises in the Dorset Downs and flows into Poole Harbour near Wareham.

Holton Heath railway station serves the area of Holton Heath in Wareham St Martin, Dorset, England. It is 118 miles 61 chains (191.1 km) down the line from London Waterloo. It was opened to serve the Royal Navy Cordite Factory, Holton Heath during the First World War. It did not open to the public until 1924.

The Royal Naval Cordite Factory, Holton Heath (RNCF) was set up at Holton Heath, Dorset, England, in World War I to manufacture cordite for the Royal Navy. It was reactivated in World War II to manufacture gun propellants for the Admiralty and its output was supplemented by the Royal Navy Propellant Factory, Caerwent. After the end of World War II, the explosive manufacturing areas of the site were closed down and some areas of the site reopened as the Admiralty Materials Laboratory. A major part of the explosives site became a nature reserve in 1981. Other parts of the site were converted into an industrial estate; and some may be used for housing. The Admiralty Materials Laboratory was later merged with other departments to become the Admiralty Research Establishment which later became part of Defence Research Agency (DRA) and DRA Holton Heath finally closed in the late 1990s. None of the site is now owned by the Ministry of Defence.

Holton Heath is an area of the parish of Wareham St. Martin, Dorset, England. The area includes a trading estate, on the site of the former Royal Navy Cordite Factory, Holton Heath, (RNCF). East of the trading estate is the Holton Heath National Nature Reserve, currently closed to the public.The area is served by the Holton Heath railway station.

Sandford is a village in the English county of Dorset, on the A351 road some two miles from Wareham and seven miles from Poole. Sandford forms the only significant settlement within the civil parish of Wareham St. Martin, which otherwise covers much of the rural area to the north of Wareham. The parish forms part of the Purbeck local government district within the county of Dorset. It is within the Mid Dorset and North Poole constituency of the House of Commons. Prior to Brexit in 2020, it was in the South West England constituency of the European Parliament. The electoral ward is also called St.Martin, and includes Holton Heath with the surrounding countryside. The total population at the 2011 census was 2,774.To the north lies Gore Heath, part of Wareham Forest, which is the subject of a controversial proposal for gravel extraction.

Arne is a village and civil parish in Dorset, England, situated 4 miles (6.4 km) east of Wareham. The local travel links are located at Wareham railway station. Bournemouth International Airport is 11 miles (18 km) away. The main road through the village is Arne Road connecting Arne to Wareham. The village is situated on the Arne Peninsula, which protrudes into Poole Harbour opposite the town of Poole.

The River Sherford, also frequently called the Sherford River, is one of the four main rivers flowing into Poole Harbour in the county of Dorset, England. It is about 12 kilometres long and drains over the tertiary beds near the harbour.

Ridge is a village in the English county of Dorset. It is situated on the south bank of the River Frome, about half a mile due south east of the town of Wareham. Ridge forms part of the civil parish of Arne, within the Purbeck local government district. A wharf on the River Frome at Ridge was once a major transhipment point for Purbeck Ball Clay. The clay was brought to the wharf by the Furzebrook Railway, and transferred to barges for the voyage to Poole Harbour. The railway is now abandoned, and the wharf has become a marina.

Organford is a hamlet in the county of Dorset, England. It is located just south of the A35 between Lytchett Minster and Slepe.

Arne RSPB reserve is a 5.634-square-kilometre (1,392-acre) nature reserve and Site of Special Scientific Interest (SSSI) maintained by the RSPB and located in Dorset. It was notified as an SSSI in 1986 and the estuarine reedbeds within the site are designated as a national nature reserve. The reserve occupies the Arne Peninsula, which protrudes into Poole Harbour. Adjacent to the site is the village of Arne, although the nearest major settlement is the town of Wareham.The reserve opened in 1966 and is chiefly lowland heath, noted for the rare heather known as Dorset heath (Erica ciliaris), and for its breeding Dartford warblers. It also has acid grassland, salt marsh and woodland, with reedbeds adjoining the mudflats of the harbour. Other important species include nightjar, woodlark and, on the mudflats, spoonbill. Over 500 species of vascular plant have been recorded on the reserve since 1966.The reserve has a substantial herd of sika deer. Originating in East Asia, these animals escaped from deer parks during the 1860s and have now become naturalised, living on the heath and oak woodland of the site.Arne is renowned for its natural environment, and has been featured on the BBC's Countryfile and Winterwatch programmes. Starting on Monday 29 May, BBC’s Springwatch broadcast from Arne over a 3 week period.

Hartland Moor is a Site of Special Scientific Interest (SSSI) on the south side of Poole Harbour near the town of Wareham in Dorset, England. It consists of lowland heathland.