The Haiku Stairs hike, famously known as the Stairway to Heaven, is one of the most thrilling and controversial hikes in Hawaii. Situated on the island of Oahu, this hike features a nearly 4,000-step ascent up the Ko'olau mountain range. Originally constructed during World War II to provide access to a secret military radio station, the stairs offer breathtaking panoramic views of the island and the Pacific Ocean. Despite its closure to the public due to safety and legal concerns, the Haiku Stairs hike continues to captivate adventurers from around the globe.