The Guadalupe-Nipomo Dunes is a coastal dune system located along the central coast of California. It stretches approximately 18 miles and is known for its diverse ecosystems, including wetlands, coastal scrub, and sandy beaches. The area is home to various plant and animal species, some of which are endangered, making it an important ecological site. This region is also significant for its cultural history, as it has been inhabited by the Chumash people for thousands of years. The dunes are part of the larger California Coastal National Monument and are protected to preserve their natural beauty and ecological importance.