Canadian mountain road tripping for honeymoon

FH and I are taking a road trip for our honeymoon in the middle of August. We want some spontaneity so minimal destination planning has happened. We will travel to Pincher Creek AB from our home and then plan to travel 93 from Fernie to Jasper. Looking for some must see/do suggestions. We want a variety of tenting/hotels and willing to spurge (being our honeymoon and all) on a cabin/AirBnB in the mountains/woods if such a thing exists for a night or two. Looking for any and all tips/suggestion/must see things. Bringing our golf clubs and some hiking gear. Of course we’ll stop in Sparwood and Frank Slide in our travels as well.