Memorial Park, located in Loma Mar, San Mateo County, California, United States, is operated by the San Mateo County Department of Parks. The park encompasses 673 acres (2.72 km2), and includes old-growth redwood trees, eight miles (13 km) of hiking trails, camping areas, picnic facilities, a visitor center, a camp store, a creek swimming area, and campfire programs. Pescadero Creek, which provides winter habitat for steelhead trout, runs through the park. Bloomquist, Hoffman, McCormick, and Peterson Creeks join Pescadero Creek within the park boundaries.

Pescadero Creek is a major stream in Santa Cruz and San Mateo counties in California, United States. At 26.6 miles (42.8 km), it is the longest stream in San Mateo County and flows all year from springs in the Santa Cruz Mountains. Its source is at 1,880 feet (570 m) above sea level on the western edge of Castle Rock State Park, with additional headwaters in Portola Redwoods State Park, and its course traverses Pescadero Creek County Park and San Mateo County Memorial Park before entering Pescadero Marsh Natural Preserve at Pescadero State Beach and thence to the Pacific Ocean 14.4 miles (23 km) south of Half Moon Bay.