Año Nuevo State Park, Nature reserve in San Mateo County, US.

Año Nuevo State Park is a nature reserve in San Mateo County on the central California coast, stretching across cliffs, sand dunes, and the offshore Año Nuevo Island. The area covers several kilometers of coastline and offers different habitats from forests to beaches.

The Ohlone lived in this area until 1791, before Spanish colonizers established Mission Santa Cruz and brought severe epidemics. The area later became grazing land and received protected status in the 20th century.

The name was given on January 3, 1603, when Sebastián Vizcaíno sailed past the point and his chaplain, Father Antonio de la Ascensión, named it Punta de Año Nuevo for the day of the sighting. The Quiroste Ohlone had lived in the area long before, and their population collapsed after Mission Santa Cruz was founded in 1791.

Between December and March visitors need a reservation for guided tours to observe northern elephant seals during their breeding season. Outside these months you can explore the trails and beaches on your own while watching for changing weather conditions.

The coastal midpoint of California lies at the park's northern end, at 37°09′58″N 122°21′40″W. The point itself looks much as Sebastián Vizcaíno saw it from his ship in 1603, since it has stayed undeveloped. A wooden rail fence along the dunes keeps visitors back from the seals resting on the sand.