Battambang. Nongsha Pa Mountain is not only a worthwhile place to visit, but also a place full of bitter memories and mysteries. You can walk up the hill or drive up the hill. The hill is not high. It's two or three hundred meters. At the top of the hill, you can see the fortresses and cannons left behind by the war with Thailand, the endless plains and distant cities of Madewang, the glittering temples, the monkeys running around fighting for food, and, of course, the ten thousand caves down to the depths. It is said that during the Khmer Rouge period, tens of thousands of people were marched here and pushed down the caves. This cave goes on step by step. The gloom is terrible. The most wonderful thing is that at the foot of the mountain, every dusk, thousands of bats fly out of a cave, flying all over the sky, extremely shocked, bats line up out of the cave for nearly an hour, a large number of white people here drinking beer to see the spectacle, that moment, all the waiting is worth it.