Etowah Mine Tunnel

I went through that tunnel one time, about 25 years ago in a canoe. Friend of mine had heard about it. He said if we could see light at the other end, it was safe to go through. That was about all I knew about it. I remember how scared I was as my paddle was hitting rocks above, to the side, boat hitting everything...etc..We made it through with no issues and never turned over. I'll never forget that.