A bit east of Lake Louise (train direction) we stopped at the famous curve. Life is funny .... that day we had an unofficial Swiss railfan gathering, no fewer than 10 Swiss showed up at the same time. All of this completely impromptu!
The trains rolled soon after we arrived, others had been waiting a tad longer. It helps if one has a radio scanner in the video shooting arsenal and knows where the trains are and how long it "should take" for them to arrive on location.