These dunes rise up to 650 feet, making them one of the tallest in North America. The area is famous for its unique "booming" sound, which occurs when the sand grains rub against each other under specific conditions. Kelso Dunes is a popular destination for hiking, photography, and stargazing. Visitors can explore the dunes via a 3-mile round trip hike. The preserve also features diverse desert wildlife and plants, offering a serene, remote natural experience.