Join Marin County Parks and Save The Bay staff to learn about the history of San Francisco Bay and Creekside Marsh, and be a part of a community-based effort to enrich important habitat areas of Hal Brown Park! Volunteer work is mildly strenuous and involves bending, pulling, and kneeling, and hiking on steep and uneven terrain. It is possible for volunteers as young as 5 years old to join if teamed with a parent or guardian. Dress in layers you can get dirty, wear sturdy shoes, and bring water. In the event of heavy rain and/or high winds call (415) 763-2977 to find out about event status. In the event of cancellation, program will be rescheduled. Pre-registration is required. To register, or for additional information, visit savesfbay. Meet across from Marin General Hospital at Hal Brown Park at Creekside. DIRECTIONS: From Hwy 101 in Larkspur, take the exit for Sir Francis Drake Blvd west 1.2 miles. Turn left onto Bon Air Rd and follow 0.3 miles. The park is on the right.