Today we drove through the tunnel in both directions once you see the no bikes sign you have no choice but to go through, that sign to me should be at eye level and was a old looking sign not very visible, and we was looking for it, both the wife and I, as a first time tourist you would have to be forgiven for going through and not seeing that sign,
On the way back we slowed right down and my wife was driving so I was able to look many lights are out, are they not working or switched off.........? After driving out of the direct sunlight as you go down it was dark, I asked my wife what she thought, she said it was dark.