The video shows a man wearing a helmet and vest, holding a rope and a light. He is walking through a tunnel and using the light to illuminate the way. The man appears to be exploring or searching for something in the tunnel. The light he is holding is bright and appears to be a flashlight. The tunnel is dark and the man is using the light to navigate through it. The man is wearing a helmet and a vest, which suggests that he may be engaged in some sort of outdoor activity or exploration. The video does not provide any additional context or information about the man's purpose or destination in the tunnel.