Sand Dune Park, Urban park with sand dunes in Manhattan Beach, California.

Sand Dune Park is a public sand dune on a steep slope in Manhattan Beach, California, built on a converted dump site by local residents in 1964. The fenced dune area is supervised during scheduled hours, and next to it is an unrestricted set of 208 steps with signs reading "No Jogging." The park is one of the last remnants of the South Bay's former sand dune landscape.

Local residents built the park around the dune in 1964 on a converted dump site. Historian Jan Dennis called it a small patch of grass and sand from the era of beach cottages, and it remains one of the last remnants of the South Bay's former dune landscape. In 2009 the dune was closed and fenced after neighbours raised noise, traffic and overcrowding concerns; it reopened in August 2010 with use mitigation measures.

Athletes including Troy Polamalu of the Pittsburgh Steelers, Kobe Bryant and Andrew Bynum of the Los Angeles Lakers, Paul Pierce and Tony Gonzalez have trained on the dune, alongside USC and UCLA football players, boxers and sprinters. Local historian Jan Dennis calls the park one of the last remnants of the South Bay's former sand dune landscape.

Access to the fenced dune is by reservation only, booked in advance at City Hall, a little over a mile away, during business hours. The entrance is supervised during scheduled hours, and fines of hundreds of dollars apply to violators. Next to the dune, 208 steps are unrestricted but posted "No Jogging," with higher fines for jogging.

Orcutt's yellow pincushion (Chaenactis glabriuscula var. orcuttiana), a rare native plant of southern California's coastal dunes, was newly discovered here in spring 2010; the Ballona Wetlands held the other new population. The California Native Plant Society lists the variety as endemic to these dunes and declining.