We stayed in a tenting site for two nights in the summer of 2013. The campsites were wonderful, spacious, private and mostly vacant. The first night we found out why they were mostly vacant! Trains go by all night long, sounding their horns over and over, so we hardly got any sleep. The basic purpose of a campsite is to be able to sleep! We were so exhausted the second night that we got some sleep, but I would never stay here again by choice. If you sleep in a trailer with air conditioning it would probably be okay, but tents don't keep out any noise, so I would not recommend tenting in Banff.