Landscapes & nature
Deogyusan National Park
National park of South Korea
Wikipedia names Deogyusan National Park 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 Deogyusan National Park. Each title’s page links to the sentence that says so.
Filming locations nearby
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Towns & cities
Muju Resort
South Korea · 2 km north
Ski resort in South Korea
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Towns & cities
Mupung-myeon
South Korea · 12 km north-east
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Towns & cities
Muju County
South Korea · 18 km north-west
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Towns & cities
Muju-eup
South Korea · 18 km north-west
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Towns & cities
Janggye-myeon
South Korea · 20 km south-west
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Landmarks & buildings
Yongdam Dam
South Korea · 22 km north-west