California State Parks will expand its holdings along the San Mateo County coast with the acquisition of a rare half-mile stretch of undeveloped beach and bluffs, known as San Gregorio Ranch.
The site, about 10 miles south of Half Moon Bay, is perhaps best known for its isolated sandy shores where hardy groups of Bay Area sunbathers have long convened in the buff. But beyond the nude beach, the 240-acre ranch is home to swaths of dunes, marsh and prairie as well as a pond with sweeping views of the Pacific.
The Palo Alto-based conservation group, Peninsula Open Space Trust, bought the coastal property last year to protect it. The nonprofit announced Monday that it will donate its $10 million purchase to the state…