Located at southeastern tip of Penang, it’s a large abandoned military fortress built in the 1930s by the British to protect the southern approaches to the island. The British Royal Engineers and a work force of local labourers blasted and dug into the hill to create a fort with underground military tunnels, an intelligence and logistic centre, halls, offices, ventilation shafts, artillery firing bays, sleeping quarters, cook houses as well as an infirmary.