The image shows a dimly lit underground tunnel with a sign hanging from the ceiling that reads "Commanding Officer's Room". The tunnel appears to be old and dilapidated, with peeling paint and cracks on the walls. There is a small window on the right side of the tunnel, through which we can see a metal gate. On the left side, there is a red and white sign with Chinese characters on it. The sign is written in both English and Chinese characters.