Creepy Tunnels

So this island has quite an interesting history. It was used as a submarine base for the Kamakazie warriors in World War 2. I didn't really understand it, but there were all these secret tunnels so that the fighters could sneak out and launch missiles from the submarines. Now there are just old tunnels with creepy voices telling you about the history! I found them pretty scary to be honest, but the others really enjoyed them!