On the Water
Deepest Lake in the U.S.
Crater Lake National Park
Mammoth Cave National Park
Take a walk through Lady Bird Johnson Grove among the banana slugs and the world's tallest trees.
Redwood National and State Park
One of this parks' island 'Santa Cruz' means "Island of the Sacred Cross".
Channel Islands National Park
Take a dip in the historic Fordyce bath house.
Hot Springs National Park
Most people see this park from a cruise ship.
Glacier Bay National Park
This cave is seen as the birthplace of the Lakota people.
Wind Cave National Park
Sequoia National Park
On these islands, Mongoose are aggressive non-native predators.
Virgin Islands National Park
Jump on an airboat and ride through the sawgrass, just watch out for gators.
Everglades National Park
French for "Travelers".
Voyageurs National Park
Located in the Guadalupe Mountains, you can watch the bat migration as they leave this park.
Carlsbad Caverns National Park
Named after a large yucca plant. You can see Skull Rock and Lost Horse Mine.
Joshua Tree National Park
Located in the South Pacific, over 2,000 miles Southwest of Hawai'i.
National Park of Samoa
Go sandboarding and sand sledding in this park.
Great Sand Dunes National Park
No roads lead to this park near Anchorage.
Lake Clark National Park
It's highly recommended to hire guides before traversing the glacial caves of this Alaskan park.
Wrangell-St. Elias National Park
This park of Bald Cypress trees is a floodplain forest, not a swamp.
Congaree National Park
Home to Fort Jefferson where Samuel Mudd was imprisoned for assisting John Wilkes Booth.
Dry Tortugas National Park
Enjoy snorkeling in this park that is 95% covered by water.
Biscayne National Park
Home to Exit Glacier.
Kenai Fjords National Park
See the Lehman Caves which used to be their own monument before being incorporated into this park.
Great Basin National Park
In the Sonoran desert, this cactus here are nicknamed "desert monarch".
Saguaro National Park
Wolf and moose populations are often studied at this park.
Isle Royale National Park
Take a ride on the scenic railroad or hike the Towpath Trail.
Chuyahoga Valley National Park