Waipiʻo Valley is a stunning, lush valley located on the Big Island of Hawaii. Known for its dramatic cliffs and rich vegetation, it is often referred to as the "Valley of the Kings" due to its historical significance as a royal residence. The valley is approximately 2 miles wide and 6 miles long, featuring a black sand beach at its mouth where the Waipiʻo River flows into the ocean. The valley is accessible by a steep road, making it a popular destination for hikers and nature enthusiasts. Visitors can explore its scenic beauty, including waterfalls like Hiilawe Falls, which is one of the tallest in Hawaii. Waipiʻo Valley is also home to diverse wildlife and native plants, contributing to its ecological importance.