Iao Valley State Park is located on the island of Maui in Hawaii. It is known for its lush landscapes, towering green mountains, and the iconic Iao Needle, a natural rock formation that rises 1,200 feet above the valley floor. The park offers several hiking trails, picnic areas, and scenic viewpoints, making it a popular destination for nature lovers and tourists. The park is rich in history and cultural significance, as it was the site of the Battle of Kepaniwai in 1790, where forces of King Kamehameha I fought against the Maui chiefs. Visitors can explore the park's diverse ecosystems, which include tropical plants, streams, and waterfalls, providing a glimpse into Hawaii's unique natural beauty.