Utah's National Parks: Zion
The big daddy of Utah's parks, Zion was really the show-stopper. There are so many visitors to this park that cars aren't allowed through most of it - people are shuttled on park buses from place to place. That was a little unappealing to me, so having our bikes to get around on was the perfect solution.
Our first night there rode on a quiet road past a family of deer with a little big-eared doe (you would have melted, Mom) to a trailhead that led us to gorgeous hidden ponds.
The following morning, we hiked Angels Landing, a trail recommended to us by several friends. It was a mildly terrifying hike, but the views were stunning. Check out those how little those shuttle buses looked from the peak: