Plaza Cuartel, which is across Immaculate Conception Cathedral church, looks like your ordinary city park with concrete pavements, towering trees and benches, but here lies a deep and dark historic mystery.
The ruins of an old garrison and tunnels are proof of its grim past. Plaza Cuartel is the site of Palawan Massacre. The tunnels were where 150 American prisoners of war were kept during World War II. But on December 14, 1944, the Japanese decided to kill them all by burning them alive. Many perished but eleven prisoners were able to survive and escape the mass execution. The place was then transformed to a leisure park.