Introduction to the military camp castle: Rows of air-raid shelters lead directly to the top of the bunker. Standing on top of the military camp castle and looking down, you feel like you are in a commanding position. There are military tunnels, storage rooms, stables, prisons, watchtowers, There are all kinds of traps, stoves, manger entrances and exits, etc. Here you can be immersed in the real situation and experience the tunnel battle "three floors inside, three floors outside, three turns, three levels, upstairs, good defense, and the enemy is there" "Light, I am in the dark, the sky is outside the sky" is a strange and dangerous situation.