The Oregon Dunes NRA spans for almost 40 miles between Florence and Coos Bay. It is the largest expanse of coastal dunes in North America. The area boasts dunes that rise up to 500 feet, but there is much more here than sand. Lakes, streams, and forests add diversity to the landscape. We have only explored the northernmost section of this area and look forward to making our way farther south soon. The area is popular for ATV use, but there are sections designated for hikers only.