Hope you all had a wonderful 4th of July! I spent the morning railfanning and stayed close to L'Anse as the traffic was crazy! The lighting was not great but I still enjoyed catching the CN come into Herman and again heading Southbound out of Herman. I did observe a potentially dangerous situation. I observed an older gentleman on the Railroad bridge over the Falls River taking photos of the Falls River while leaning over the railing! I told his wife the train was coming and she in turn let him know. The next couple I observed parked and headed straight to the bridge and started taking photos of the falls River as the train was coming. I ran a short distance yelling and waving my arms at them but I don't know if it was me that made them look up or the oncoming train! There is a curve there and the engines are shoving not pulling so the engineer would be the last to see the bridge and the conductor would see it seconds before crossing it! There are signs that say No trespassing-they are totally ignored! There is a posted pathway to follow the river but these people chose to ignore it and go on the dangerous bridge crossing, This is not the first time I have seen this happen but today it was the closest to a tragedy. I have seen plain ignorance from the part of the couple that paid no attention to the warning signs and could have been tragic for many people. Observing life while railfanning~!