//
Walk along the 1.5-mile (2.4-km) boardwalk that follows the top of the cliffs. It's an easy walk and the views are breathtaking. There are several points that offer beach access and opportunities to explore tide pools. The beach is named for the semi-precious gemstone that occasionally washes ashore.
A house on a 2.5-acre lot that is built of rocks, abalone shells, wood, beer cans, tile, car parts and other assorted junk. It is a California Historic Landmark as an example of California folk art. A poor's man Hearst Castle, it was built by garbage collector Arthur "Art" Harold Beal, who bought the property in 1928 and then spent decades using a pick and shovel to carve out terraces. Changed ownership in 2022, no longer available for tours. Front facade is still visible from road.
The 3,409-acre park was established in 1932. A 3.3-mile (5.3-km) trail runs through the park and includes overlooks of the rocky coastline and interpretive panels with information on wildlife and habitat. A portion of the trail along the seasonal wetland is wheelchair accessible.
A German-inspired seasonal Christmas market, with decorative lights, live music, and plenty of food and gifts for sale. Open most days between Thanksgiving and Christmas Eve. The main parking area is at the Coast Union High School (2950 Santa Rosa Creek Road) and has a free shuttle service.