Waimoku Falls, Waterfall in Haleakala National Park, Maui, Hawaii.

The waterfall drops over 400 feet (120 meters) down a sheer rock wall, sending up a cool mist that you can feel on your face even from a distance.

Waimoku Falls lies within Haleakalā National Park, which was established in 1961 and protects the summit of Haleakalā together with the Kīpahulu coastal district where the falls are found. The Kīpahulu area was added to the park in 1969, extending protection to the pools, streams and waterfall along the Pipiwai Trail.

The name Waimoku is Hawaiian, and the falls lie within Haleakalā National Park on Maui, where the Pipiwai Trail leads hikers past a bamboo grove to the base. The pool below the falls is a stopping point on the trail, and the surrounding Kipahulu district is managed as part of the national park.

The hike to reach the waterfall is about 4 miles (6.4 kilometers) round trip along the Pipiwai Trail, which winds through a bamboo forest and crosses several small streams along the way.

The falls sit within Haleakalā National Park, on the island of Maui in Hawaii, and are fed by streams of the Kīpahulu Valley above them. The pool at their base is shallow and often filled with mist, and the cliff behind stays wet year-round.