Desert parks at their best
Zion, Arches, Joshua Tree, and Saguaro are comfortable in spring before the heat. Expect spring-break and weekend crowds at the most famous spots, so go midweek when you can.
Waterfalls and green valleys
Yosemite's waterfalls peak with the spring snowmelt, usually around May. Lower-elevation trails green up while the high country waits for summer.
What to check before you go
High roads like Tioga Road, Trail Ridge Road, and Going-to-the-Sun Road are often still closed in spring. Confirm seasonal road status before building a trip around them.
