Harry Potter And The Half-Blood Prince filmed at Cliffs of Moher. The real cliffs form the backdrop, while the horcrux cave itself was rebuilt in a film studio. On screen it's Sea cave.

Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer. This is an area, not a spot. The coordinate is its middle, so use it to navigate to the place and not to line up a shot.
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