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Where is the Bataan Peninsula located in the Philippines?

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The Bataan Peninsula is located on the western side of Luzon, the largest island in the Philippines.1

Geographically, the peninsula serves to shelter Manila Bay to its east from the South China Sea to its west. It is a mountainous region, characterized by dense jungle and steep terrain, with Corregidor Island situated just off its southern tip at the entrance to the bay.12