The structure of the anti-Japanese tunnel ruins tourism guide at the bottom of the mountains in Jinan, Hebei8 / 11Tourism Guide to the Anti-Japanese Tunnel Site at the Bottom of the Mountain in Jinan, Hebei - The Gun Tower
Cave entrance introduction: In some villagers’ homes, there are relatively complete tunnel entrances for cooking stoves and wells. Many places that people don't expect are authentic cave entrances.
Tourism Guide to the Anti-Japanese Tunnel Site at the Bottom of the Mountain in Jinan, Hebei - Cave Entrance