Visit Haleakala National Park, home to the dormant Haleakala volcano and unique ecosystems in Hawaii
Watch brown bears, salmon runs, volcanoes, and the Valley of Ten Thousand Smokes in Katmai National Park.
Explore hydrothermal vents, lava domes, lakes, and volcanic peaks in Lassen Volcanic National Park.
Explore volcanoes, glaciers, turquoise lakes, rivers, and bear habitat in Lake Clark National Park.
Walk lava landscapes and see active volcanic terrain in HawaiΚ»i Volcanoes National Park.
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