Depends, walking through the tunnel, takes a few minutes, but other activities can take some more time. The videos, conversation with the locals e.g. we met one of the builders of the tunnel. So it depends how much you are... More
Depends, walking through the tunnel, takes a few minutes, but other activities can take some more time. The videos, conversation with the locals e.g. we met one of the builders of the tunnel. So it depends how much you are interested.