Not everybody plans a holiday around luxurious hotels, five-star dining and boutique shopping. For those looking to walk on the wild side, the U.S. is home to plentiful destinations where thrill-seekers can hit the trails, catch a wave or come face to face with animals.
Often, surpasses by Yellowstone, Yosemite National Park in California's Sierra Nevada is peppered with mountains, meadows, massive sequoia trees and plummeting granite cliffs.
Yellowstone - Filled with geothermic wonders like Old Faithful, the Grand Prismatic Spring and the Mammoth Hot Springs, America's oldest national park offers miles of undisturbed wilderness that beckons to visitors looking for a taste of adventure
Kauai - Featuring acres of misty rainforests, plummeting waterfalls and jagged cliffs overlooking the Pacific Ocean, Kauai's natural wonders are ample enough to excite even the most hardcore thrill-seeker.
Grand Canyon - Attracting visitors from around the world, the pink, red and rust-colored terraces walls of Arizona's Grand Canyon make for an awe-inducing sight.
