Taylor Lake is a nice gradual ascent with limited views throughout the hike until you get to the lake where it opens up into a spectacular 180-degree panorama.
Castle Mountain Lookout is a short but steep hike that provides sweeping views across the valley. It is a Stairmaster grind at the top but worth the effort.
Arnica Lake is a challenging winter stroll due to the elevation gain including a km long climb out of the valley at the end, but the sweeping views are amazing.
Fullerton Loop is a relatively short and easy trail that is close to Calgary and offers some nice vistas of the Kananaskis Range and along the Elbow River.