Landscapes & nature
Trebah
Tropical gardens tourist attraction in Cornwall, England, UK
Wikipedia names Trebah 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 Trebah. Each title’s page links to the sentence that says so.
The Secret GardenFantasy film2020
Filming locations nearby
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Landscapes & nature
Helford River
United Kingdom · 2 km east
Inlet of the English Channel (ria) in Cornwall, England, UK
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Towns & cities
Falmouth
England · 7 km north-east
Town and port on the River Fal in Cornwall, England, UK
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Landscapes & nature
Carrick Roads
England · 8 km north-east
Estuary in Cornwall, England, UK
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Landmarks & buildings
St Anthony's Lighthouse
England · 9 km north-east
Lighthouse in Gerrans, Cornwall, England, UK
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Landscapes & nature
The Lizard
England · 9 km south-west
Peninsula in Cornwall, England, UK
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Castles & palaces
St Mawes Castle
England · 9 km north-east
Castle in Cornwall built in the 16th century