Yosemite National Park is a world-renowned destination known for its granite cliffs, waterfalls, clear streams, Giant Sequoia groves, and biodiversity. Start your visit with a drive along Glacier Point Road, where you can stop for panoramic views of Yosemite Valley. Dedicate an entire day to hiking the Mist Trail, where you will be captivated by Vernal and Nevada Falls. Explore the Mariposa Grove to see over 500 mature Giant Sequoias. Park entrances are open 24 hours a day. Recommended accommodations include Yosemite Valley Lodge and The Majestic Yosemite Hotel.

Renowned for its Giant Sequoia trees, Mount Whitney, and picturesque landscapes, the Sequoia National Park offers a unique experience. Hiking the General Sherman Tree trail will lead you to the world's largest tree. Also, the Moro Rock Trail will provide a perfect view of the park's vast wilderness. Entrance times are from 8 AM to 5 PM. Opt for a comfortable stay at Wuksachi Lodge or Bearpaw High Sierra Camp.

Adjacent to Sequoia National Park, Kings Canyon is another gem in California's crown. Known for its dramatic landscapes including towering cliffs, tumultuous river valleys, and lush meadows, it provides abundant hiking routes like the Zumwalt Meadow, Roaring River Falls, and Mist Falls. As for accommodations, John Muir Lodge offers a comfortable stay. Note that the park stays open 24 hours.

Known for its desert landscapes, stunning sunsets, and the iconic Joshua Trees, this park impresses everyone. Hike the Hidden Valley and Barker Dam trails, or go rock climbing at the Wonderland of Rocks. Open 24 hours, you could opt to stargaze at night due to the park's dark sky status. Nearby accommodations include the quirky Spin and Margie's Desert Hideaway and the chic Mojave Sands.

The final leg of your National Park journey takes you to Death Valley - a land of extremes known for its unique geology and surreal landscapes. Remember to visit Dante's View for a panoramic view of the park and take a drive through the scenic Artist's Drive. Lodging options include The Oasis at Death Valley and Stovepipe Wells Village. The park is open 24 hours a day.