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Discover how the ground beneath our feet and rocks all around us were formed on this moderate, approximately 2-mile hike, with games and cookies enjoyed along the way.
All ages. Parent participation required. Parking fees apply where charged. Ages 5+. This is a drop-in program; no registration is required. For information, call (510) 544-3220.
Disclaimer: Please double check event information with the activity organizer or venue as events can be canceled, details can change after they are added to our calendar, and errors do occur.
