Hawaiʻi Volcanoes National Park

Park in Hawaiʻi the Big Island

Image by by Mike Lyvers Getty Images

Even among Hawaii's many wonders, this national park stands out. Its two active volcanoes testify to the ongoing birth of the islands: quiet Mauna Loa (13,677ft) sprawling above, its unassuming mass downplaying its height, and young Kilauea (4091ft), one of the world's most active volcanoes, providing near-continual sources of awe. With luck, you'll witness the primal power of molten earth boiling into the sea. But the park contains much more: overwhelming lava deserts, steaming craters, lava tubes and ancient rainforests.

For hikers, the possibilities are endless.