The thing about Zion Canyon is the scale. You're standing at the bottom looking up at walls of Navajo sandstone — cream and pink and burnt orange — rising nearly 3,000 feet above you, and the sky is just this narrow corridor of blue above it all. Walking the canyon floor along the Virgin River, with the canyon walls that high on both sides, is one of the more physically humbling experiences I've had in a park. You feel very small in a way that isn't frightening but is clarifying.
Zion is in the southwestern corner of Utah, about 160 miles northeast of Las Vegas, and it's one of the most visited national parks in the country. The main canyon is 15 miles long and cut over millions of years by the Virgin River working through layers of sedimentary rock. The Ancestral Puebloan and Fremont peoples lived and traveled here for thousands of years, and the Southern Paiute people have called the area home for centuries. Mormon settlers arrived in the 1860s and named it Zion — a Hebrew word meaning refuge — which says something about what the place does to people.
Angels Landing is the famous one: a 5.4-mile round trip that tops out on a narrow sandstone fin with thousand-foot drop-offs on both sides, equipped with chains bolted into the rock for the final push. It requires a permit and deserves its reputation. But the park has plenty that doesn't demand exposure. The Riverwalk is flat and paved and ends where the canyon narrows into the Narrows — the slot canyon where you wade upstream through the river itself, the walls closing to sometimes fifteen feet apart above you. That stretch of river might be the most visually remarkable mile in the whole state.
The park runs a shuttle system from spring through fall that manages traffic and keeps the canyon road accessible without a car — which is actually better than driving, because you can stare at the walls instead of the road. Go early or late in the day for light. The mid-day sun bleaches some of the color out of the canyon walls, but the golden hour makes the whole place look like it's on fire. In a good way.