Mitchell peak has one of the best 360 degree views of the Sierras in Sequoia Kings Canyon Park, easily accessible by a short 3 mile day hike
Three Sisters Falls Hike - Cleaveland NF, CA
Saddleback Butte Peak Trail - Saddleback Butte SP, CA
The Slot - Anza-Borrego SP, CA
Fish Creek Wash & Wind Caves — Anza Borrego SP, CA
Anza-Borrego is the largest CA state park and has tons of its own unique features. Mainly for 4WD, offroading, and dirt biking enthusiasts, we still had a lot of fun on foot and with just 2WD. Fish Creek Is just a tiny portion of the park, but the wind caves are truly unique and offer an amazing view for sunset. Hint - if you camp at Fish Creek Primitive Campground nearby, it's free and there are fire rings and a very clean toilet.
Hiking and Canyoneering The Subway — Zion National Park, UT
Hiking the Narrows - Zion National Park, UT
Angel's Landing - Zion National Park, UT
Hidden Canyon - Zion NP, UT
Hidden Valley - Joshua Tree NP, CA
Berry Creek Loop Hike — Big Basin Redwoods, CA
Mesa Arch & Elephant Hill at Island in the Sky - Canyonlands NP, UT
Island in the Sky was our favorite district within Canyonlands. Although it was definitely more crowded, you can drive between all of the attractions, and the hikes are all short and easy with just as rewarding payoffs. If you only have the time or energy for one, definitely do Grand View Overlook (at sunset for an extra bonus), because the view of the white rim is stunning.
Grand View Point at Island in the Sky - Canyonlands NP, UT
The Grand View Overlook parking lot is easy to reach by car, and there were plenty of other hikers at this very popular overlook. It's a very easy but scenic trail - Clark and I actually hiked it all in flip flops. If you only have time for one short hike at Island in the Sky, I would recommend this one!
Chesler Park from Elephant Hill at Needles - Canyonlands NP, UT
Arches National Park, UT
Arches NP is a unique park in that all of the points of interest are quite far apart and there aren't too many hiking trails. We decided to do a car tour with minor hiking, and it was nice to be a tourist and just get out of the car to take pictures, since it was so hot. Even though the park is a little out of the way, it is worth the trip to see some rock arches.