Top Secret! Filming Locations

Holywell is a coastal village in the civil parish of Cubert, in north Cornwall, England, United Kingdom. It is at Holywell Bay, about three miles west-southwest of Newquay.

Rockingham is a village and civil parish in North Northamptonshire, England. Close to the border of Leicestershire and Rutland, the village is largely connected to the town of Corby where various local organisations utilise the Rockingham name. Other nearby villages include Cottingham, Great Easton and Caldecott.

St Ives is a town in Cornwall, England, known for its surf beaches, like Porthmeor, and its art scene. The seafront Tate St Ives gallery has rotating modern art exhibitions, focusing on British artists. Nearby, the Barbara Hepworth Museum and Sculpture Garden, in the modernist artist’s former studio, displays her bronzes and other works. Boat trips go to Seal Island, just west of town, to see the seal colony.

Iver is a civil parish in Buckinghamshire, England. In addition to the central clustered village, the parish includes the residential neighbourhoods of Iver Heath and Richings Park and the hamlets of Shreding Green and Thorney.

Northamptonshire is a ceremonial county in the East Midlands of England. It is bordered by Leicestershire, Rutland and Lincolnshire to the north, Cambridgeshire to the east, Bedfordshire, Buckinghamshire, Oxfordshire to the south and Warwickshire to the west. Northampton is the largest settlement and the county town.

Buckinghamshire is a ceremonial county in South East England and one of the home counties. It is bordered by Northamptonshire to the north, Bedfordshire to the north-east, Hertfordshire to the east, Greater London to the south-east, Berkshire to the south, and Oxfordshire to the west.

Peterborough is a city in eastern England. It’s known for the 12th- and 13th-century Peterborough Cathedral, with its Gothic facade. In a former hospital building, the Peterborough Museum has a reconstructed Victorian operating theatre, plus fossils and paintings. Flag Fen Archaeology Park features Bronze Age village and causeway remains. Nene Park is home to woodlands, footpaths and Ferry Meadows recreation area.

Cambridgeshire is a ceremonial county in the East of England and East Anglia. It is bordered by Lincolnshire to the north, Norfolk to the north-east, Suffolk to the east, Essex and Hertfordshire to the south, and Bedfordshire and Northamptonshire to the west.