Landscapes & nature
Gulf of Gaeta
Body of water on the west coast of Italy
Wikipedia names Gulf of Gaeta 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 Gulf of Gaeta. Each title’s page links to the sentence that says so.
Filming locations nearby
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Towns & cities
Gaeta
Italy · 14 km north-east
Italian comune
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Towns & cities
Sperlonga
Italy · 19 km north
Italian comune
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Towns & cities
Formia
Italy · 20 km north-east
Italian comune
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Towns & cities
Itri
Italy · 21 km north
Italian comune
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Towns & cities
Baia Domizia
Italy · 27 km north-east
Frazione of Italy
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Towns & cities
Minturno
Italy · 28 km north-east
Italian comune