Landscapes & nature
Peppara Wildlife Sanctuary
Catchments of the Peppara Dam on the Karamana River in India
Wikipedia names Peppara Wildlife Sanctuary 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 Peppara Wildlife Sanctuary. Each title’s page links to the sentence that says so.
Filming locations nearby
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Landscapes & nature
Agastya Mala
India · 9 km east
Mountain in Thiruvananthapuram district, Keralam, India
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Towns & cities
Palayam, Thiruvananthapuram
India · 17 km west
Neighborhood in Thiruvananthapuram
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Towns & cities
Papanasam
India · 26 km east
Village in Tirunelveli District, Tamil Nadu, India
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Landscapes & nature
Neyyar Wildlife Sanctuary
India · 27 km south
Sanctuary in the southern state of Kerala in India
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Landmarks & buildings
Government College for Women, Thiruvananthapuram
India · 28 km south-west
Women's college located in Thiruvananthapuram, Kerala, India
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Landmarks & buildings
Chandrasekharan Nair Stadium
India · 29 km south-west
Building in India