The 2 rivers are vastly different beasts. The Bow through Calgary is relatively tame. Harvie Passage and St G island do make for a more accessible river. If we had a large Island we may have had some different flow conditions. but the river squeezes through Edmonton so higher flow rates. Regrettably I don't expect to see touch the water in my lifetime. The political and financial will is not there.The North Saskatchewan must flow faster than the Bow River, at least downtown, perhaps partly the result of the Harvie Passage (and other breaks) east of downtown. Aquatic opportunities seem more abundant with St. George's Island and Prince's Island, not to mention the Elbow River. Downtown is located in the Bow Valley. Sadly, the North Saskatchewan has claimed two lives this year because of fast-flowing sections.
But get out on the water right now. This conditions are at their best.