You can go on some really long rides around Calgary, as most bike paths connect in some way.
Bow river paths - from Bowness to Deerfoot. From there, North can connect to Nose Hill, south connects to Fish Creek.
Elbow River path - connects to Bow, goes upstream to the dam, then around the reservoir, and can connect to Fish Creek paths.
https://maps.calgary.ca/PathwaysandBikeways/