Big Rock Sunrise Hike
Source: Marin County Parks
Lucas Valley Preserve
Sunday, March 22, 2026, 7 – 10am
Directions: From Hwy 101 in San Rafael, take the exit for Lucas Valley Rd west, and continue approximately 5.5 miles (look for the big rock). The trailhead is on the north side of Lucas Valley Rd. Street parking only. Please be respectful of local residents. Do not block streets, gates, or driveways.
Sponsor: Parks
Accommodation Information: If you are a person with a disability and require an accommodation to participate in a County program, service, or activity, requests may be made by calling 415-473-4381 (Voice), Dial 711 for CA Relay, or by submitting a Disability Accommodation Request at least five business days in advance of the event. We will do our best to fulfill requests received with less than five business days’ notice. Copies of documents are available in alternative formats upon request.
Sunday, March 22, 2026, 7 – 10am
Start the day with a sunrise hike on Big Rock Trail! We'll climb to enjoy sweeping valley views and soak in the quiet beauty of morning light. The hike will cover up to 5 miles on uneven terrain, with some loose sections and steeper climbs. Distance may vary based on conditions and group pace. Appropriate for all ages. Please dress in layers and wear sturdy shoes. Bring a headlamp or flashlight. Adverse weather or poor air quality conditions may result in cancellation. Check the calendar or call (415) 473-2816 two hours before the event to confirm the status. Registration is required.
Questions: Michala Roan
Directions: From Hwy 101 in San Rafael, take the exit for Lucas Valley Rd west, and continue approximately 5.5 miles (look for the big rock). The trailhead is on the north side of Lucas Valley Rd. Street parking only. Please be respectful of local residents. Do not block streets, gates, or driveways.
Sponsor: Parks
Accommodation Information: If you are a person with a disability and require an accommodation to participate in a County program, service, or activity, requests may be made by calling 415-473-4381 (Voice), Dial 711 for CA Relay, or by submitting a Disability Accommodation Request at least five business days in advance of the event. We will do our best to fulfill requests received with less than five business days’ notice. Copies of documents are available in alternative formats upon request.