I am interested in the Niagra Rim Trail if like you say, there are go-arounds for the harder stuff. I definitely cannot handle some of those rocky climbs without serious help. Did you see lots of other people on your scouting trip? I didn't see any other vehicles in your pictures. Maybe it won't be so busy. I'm up for either, but this Niagra Rim Trail system seems like it will keep us more entertained for the 3 days.