Cascade Mountain towers over the town of Banff and has been on every postcard of Banff National Park for years. It's beautiful to look at, but you don't just have to stop there! Did you know you can actually climb Cascade Mountain? It will require work and a long 20km day with a lot of elevation gain, but the rewards are fantastic views over Lake Minnewanka and the glory of saying you summited Cascade!
Plan a full day for Cascade Mountain and pack appropriately; this is a serious mountain and should not be taken lightly. If it's your first hike in the Canadian Rockies, I would not suggest Cascade. It's long, has a lot of elevation gain, and has a few hands-on scrambling points throughout the hike.
We met many people on Cascade who had never hiked before, and I don't think that's such a good idea for such a big mountain. However, if you're an experienced hiker looking for a longer objective, Cascade is good.