The small park next to the cathedral in central Puerto Princesa is the surviving fragment of the Spanish-era cuartel, the colonial barracks. It is also the site of one of the worst war atrocities committed in the Philippines: the deliberate burning alive of around 140 American POWs by the retreating Japanese garrison in December 1944.
A simple stone monument and a few interpretive plaques mark the spot. It is a quiet, sobering ten minutes; combine with the cathedral next door.