Course Map: Mermaid Run East Bay Half Marathon

Runners follow an out-and-back course for the Mermaid Run Half Marathon, which starts and finishes near the parking area of Quarry Lakes Regional Recreation Area, about an hour’s drive east from downtown San Francisco. From there, runners head along the lakeside, across the Sequoia Bridge and along the Alameda Creek Trail, for a long out-and-back stretch that turns around just south of Alvarado Boulevard. The finish line lies at the Ensenada Picnic Area inside the park.

(MORE: Mermaid Run East Bay Half Marathon event details)

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Note: The course map above provides the approximate route for the race. Though every effort has been made to ensure its accuracy, changes are sometimes made to race routes due to weather conditions, road closures or other circumstances that can require a course to be changed.

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