The Haʻikū Stairs is a steep hiking trail on the island of Oʻahu, Hawaii. This locally famous 3,922-step stairway ascends to the summit of the Koolau mountain range. The stairs climb 2,800 feet (850 m) up a nearly vertical cliff from the base of Haiku Valley to the summit of Puu Keahi a Kahoe.
The ascent is so steep that sometimes the stairs disappear behind the climber into the clouds that blanket the sharp peaks. That is why some call the Haiku Stairs the “Stairway to Heaven.” The hike is extremely popular because it is easily accessible, and a thrilling adventure for those who do not suffer from the fear of heights.