Yosemite

Yosemite National Park, one of California's most challenging natural settings, is roughly 1,200 square miles of pure awe, with towering waterfalls, centuries-old sequoia trees, stark, intimidating cliff faces, and some of the country's most unusual rock formations. It is one of the Best Adventure Vacations in the U.S.

But despite its huge expanse, Yosemite Valley is where most tourists congregate. Half Dome and El Capitan, two of the park's most well-known features, are located here, along with top-notch hiking paths that wind among the natural wonders. Yosemite is accessible to hikers of all skill levels because to the availability of local adventure outfitters' guided tours and climbing instruction.

Just don't expect to go through it alone. Yosemite receives over 4 million visitors annually, which makes it one of the most crowded tourist sites in the United States. However, if you go at the correct time (and begin your day a bit earlier than usual), Mother Nature's beauties will miraculously and peacefully show themselves to you.

Rankings:

• #1 in Best National Parks in the World
• #1 in Best U.S. National Parks
• #3 in Best Adventure Vacations in the U.S.

Best Things to Do:

• Yosemite Valley
• Tunnel View Outlook
• Glacier Point

Best Months to Visit: May and September