Welcome to the 23rd running of the Pacifica Trail Run. Choose 30K, 21K or 10K. These trails are a coastal jewel nestled between the Santa Cruz Mountains and foothills of Pacifica. It offers diverse coastal vegetation, year-round creeks, and even a seasonal waterfall with a good winter rain. Run on the coastline, in meadows, next to eucalyptus groves and wildflowers. On clear days, enjoy vistas of the Pacific Ocean, San Francisco and Marin County. The ocean breeze provides cooler air than other locations in the bay area during the summer while you run through one of the most bio-diverse and pristine coastal parks in California.