 Santa Cruz is home to several notable educational institutions, including Harbor High School, Georgiana Bruce Kirby Preparatory School (a grade 6–12 private school), Pacific Collegiate School (a grade 7–12 charter school), Cypress Charter High School, Monterey Coast Preparatory (also a 6–12 private school), Santa Cruz High School, the University of California, Santa Cruz, Cabrillo College, (which is located in nearby Aptos and Watsonville and holds some classes within Santa Cruz city), and Five Branches University.The Long Marine Laboratory is a marine research facility on the western edge of the city.By the 1860s, Pacific Avenue had become the main street of downtown Santa Cruz, and remains so today.