The Crystal Cove Historic District is a part of the Crystal Cove State Park located in Newport Beach, California. It is listed on the National Register of Historic Places encompassing 12.3 acres (50,000 m2) along the Southern California coast. It was listed on the National Register not only because of its significance but also because of the 48 cottages located there which were built in the 1920s and 1930s. These cottages are perfect examples of Southern California coastal development in the early 20th century and were preserved by the Crystal Cove Alliance. Since the restoration, the cottages have been open to the public for overnight stays. The district also remains a popular location for the film industry.