One of the first parks in the National Park Service, California's Yosemite is a World Heritage site. Its most famous scenery includes mountain peaks like Half Dome and El Capitan, Yosemite Falls, giant sequoias, and sub-alpine lakes. Adventure travel expert Matt Villano recommends Hetch Hetchy, an uncrowded area in the park’s northwest corner, for unparalleled hiking.
El Capitan is a vertical rock formation in Yosemite National Park. The granite monolith extends about 3,000 feet (900 m) from base to summit along its tallest face, and is one of the world's favorite challenges for rock climbers and sometimes referred today as El Cap. (From Incredible Pictures site.)
Jasper National Park, Alberta, Canada - Jasper National Park and Banff National Park (which are attached to each other) are my favourite national parks! I hope to return to explore, hike, canoe and kayak someday!