Acadia ✪ Top Rated
4.9 (13,035 reviews)
Covering most of Mount Desert Island and other coastal islands, Acadia features the tallest mountain on the Atlantic coast of the United States, granite peaks, ocean shoreline, woodlands, and lakes. There are freshwater, estuary, forest, and intertidal habitats.
Maine, United States - EastExplore Acadia
4.7 (1,743 reviews)
Located in Biscayne Bay, this park at the north end of the Florida Keys has four interrelated marine ecosystems: mangrove forest, the Bay, the Keys, and coral reefs. Threatened animals include the West Indian manatee, American crocodile, various sea turtles, and peregrine falcon.
Florida, United States - EastExplore Biscayne
4.8 (5,543 reviews)
This landscape was eroded into a maze of canyons, buttes, and mesas by the combined efforts of the Colorado River, Green River, and their tributaries, which divide the park into three districts. The park also contains rock pinnacles and arches, as well as artifacts from Ancient Pueblo peoples.
Utah, United States - WestExplore Canyonlands
Channel Islands Good
4.7 (1,428 reviews)
Five of the eight Channel Islands are protected, with half of the park's area underwater. The islands have a unique Mediterranean ecosystem originally settled by the Chumash people. They are home to over 2,000 species of land plants and animals, 145 endemic to them, including the island fox. Ferry services offer transportation to the islands from the mainland.
California, United States - WestExplore Channel Islands
Crater Lake Great
4.8 (10,470 reviews)
Crater Lake lies in the caldera of an ancient volcano called Mount Mazama that collapsed 7,700 years ago. The lake is the deepest in the United States and is noted for its vivid blue color and water clarity. Wizard Island and the Phantom Ship are more recent volcanic formations within the caldera. As the lake has no inlets or outlets, the lake is replenished only by precipitation.
Oregon, United States - WestExplore Crater Lake
Dry Tortugas Great
4.8 (1,194 reviews)
The islands of the Dry Tortugas, at the westernmost end of the Florida Keys, are the site of Fort Jefferson, a Civil War-era fort that is the largest masonry structure in the Western Hemisphere. The park is home to undisturbed coral reefs and shipwrecks, and is only accessible by plane or boat.
Florida, United States - EastExplore Dry Tortugas
4.6 (9,633 reviews)
The Everglades are the largest tropical wilderness in the United States. This mangrove and tropical rainforest ecosystem and marine estuary is home to 36 protected species, including the Florida panther, American crocodile, and West Indian manatee. Some areas have been drained and developed; restoration projects aim to restore the ecology.
Florida, United States - EastExplore Everglades
4.8 (11,920 reviews)
The U.S. half of Waterton-Glacier International Peace Park, this park includes 26 glaciers and 130 named lakes surrounded by Rocky Mountain peaks. There are historic phone and a landmark road called the Going-to-the-Sun Road in this region of rapidly receding glaciers. The local mountains, formed by an overthrust, expose Paleozoic fossils including trilobites, mollusks, giant ferns and dinosaurs. The park is also home to Triple Divide Peak, which forms the boundary between the watersheds of the Atlantic, Pacific, and Arctic Oceans.
Montana, United States - WestExplore Glacier
Glacier Bay ✪ Top Rated
4.9 (2,461 reviews)
Glacier Bay contains tidewater glaciers, mountains, fjords, and a temperate rainforest, and is home to large populations of grizzly bears, mountain goats, whales, seals, and eagles. When discovered in 1794 by George Vancouver, the entire bay was covered by ice, but the glaciers have since receded more than 65 miles (105 km).
Alaska, United States - WestExplore Glacier Bay
Grand Canyon Great
4.8 (48,477 reviews)
The Grand Canyon, carved by the mighty Colorado River, is 277 miles (446 km) long, up to 1 mile (1.6 km) deep, and up to 15 miles (24 km) wide. Millions of years of erosion have exposed the multicolored layers of the Colorado Plateau in mesas and canyon walls, visible from both the north and south rims, or from a number of trails that descend into the canyon itself.
Arizona, United States - WestExplore Grand Canyon