What: Historic state park home to iconic Iao Needle Where: Central Maui, just west of Wailuku Towering emerald peaks guard the lush valley floor of Iao Valley State Park. Located in Central Maui just west of Wailuku, this peaceful 4,000-acre, 10-mile long park is home to one of Maui's most recognizable landmarks, the 1,200-foot Iao Needle. This ... The Rock Island Spur of Katy Trail State Park is a 47.5-mile trail that stretches through the heart of west-central Missouri. The trail provides an adventure for bicyclists, hikers and equestrian users who are seeking an avenue to enjoy nature, explore a part of rural Missouri history and have an enjoyable recreational opportunity.