Landscapes & nature
Helford River
Inlet of the English Channel (ria) in Cornwall, England, UK
Wikipedia names Helford River as where 1 film or series was filmed; its page links to the sentence that says so. Wikidata records no shoot here yet.

Filmed here, per Wikipedia
Wikipedia says these were filmed in Helford River. Each title’s page links to the sentence that says so.
Treasure IslandFamily film1950
Filming locations nearby
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Landscapes & nature
Trebah
England · 2 km west
Tropical gardens tourist attraction in Cornwall, England, UK
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Towns & cities
Falmouth
England · 6 km north-east
Town and port on the River Fal in Cornwall, England, UK
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Landscapes & nature
Carrick Roads
England · 7 km north-east
Estuary in Cornwall, England, UK
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Landmarks & buildings
St Anthony's Lighthouse
England · 8 km north-east
Lighthouse in Gerrans, Cornwall, England, UK
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Castles & palaces
St Mawes Castle
England · 8 km north-east
Castle in Cornwall built in the 16th century
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Towns & cities
St Mawes
England · 9 km north-east
Village in Cornwall, United Kingdom