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A group of people stand at the top of a hill overlooking a green valley bathed in late-afternoon light, under a clear blue sky
Guided Activity

Spreckels Hill: Water, Wildlife and Connectivity Hike

Friday, August 22, 2025 At 5:30 - 7:30pm
docent-led, evening, family friendly, weekday
Other Protected Land
San José
Join the Open Space Authority for an engaging evening hike to explore a Coyote Valley property not yet open to the public. The walk will be a gentle 0.5-mile climb up a lovely spiral trail, ending in a beautiful 360 view of Coyote Valley.
Sign up through Eventbrite
A group of volunteers wearing hats and yellow field gloves work in a field full of tall green invasive plants, holding field hoes to remove the plants
Volunteer Project

Volunteer Land Stewards: Stinkwort Weeding at Santa Teresa Foothills

Saturday, August 23, 2025 At 8am - 12pm
morning, weekend
Other Protected Land
San José
Join the Open Space Authority remove invasive weeds from to Santa Teresa Foothills. This protected land was burned in 2020, and afterwards an invasive species, stinkwort (Dittrichia graveolens), invaded the burned area. Volunteers will be working with staff to pull out the stinkwort before it blooms, so we can reduce further spread into the habitat. No experience required!
Sign up through the Volunteer Portal
Teal graphic with the words: Viva Parks Activations Summer Events 2025 Free Family-Friendly Events
Community Event

Sponsored Event: Viva Parks

Monday, August 25 - Wednesday, August 27, 2025 At All day
evening, weekday
San José
The Open Space Authority is proud to sponsor Viva Parks, a series of free events focused on health and wellness resources, physical activity and community engagement, hosted by City of San José Department of Parks, Recreation and Neighborhood Services. Come visit our booth at a variety of these events at your local parks over the summer!
Learn more about these events
OSA logo on a purple square
Public Meeting

Board of Directors Meeting

Thursday, August 28, 2025 At 6:30 - 9pm
San José
Public Meetings Page
A sunny, grassy hilltop with a clear blue sky. A group of hikers, diverse in age and attire, walk and rest on a dirt path. A lone tree stands to the left, with rolling green fields and distant hills in the background.
Guided Activity

Self-Paced Transit Month Hike

Saturday, September 6, 2025 At 9am - 12pm
day, family friendly, morning, self-guided, weekend
Other Protected Land
San José
In honor of Transit Month, the Open Space Authority invites you to utilize public transportation to access an exclusive hiking destination! Take the Route 68 bus line followed by a self-paced hike at Spreckels Hill where docents will share fun facts about the preserve and local wildlife.
Sign up through Eventbrite
Event poster with the title "Viva CalleSJ" and a large blue and green stylized logo with houses, trees, and bikes
Community Event

Sponsored Event: Viva CalleSJ

Sunday, September 7, 2025 At 10am - 3pm
day, family friendly, morning, self-guided, weekend
San José
The Open Space Authority is proud to sponsor Viva CalleSJ! Come visit our booth at the Activity Hub.
Learn more about this event
Full moon partially obscured by a green-leaved tree on a rocky, grassy hill under a clear blue sky. The moon's bright, white surface contrasts with the dark tree and rugged terrain.
Guided Activity

Full Moon Hike Series (Part 1 of 4)

Sunday, September 7, 2025 At 6:30 - 10pm
docent-led, evening, family friendly, weekend
Coyote Valley
Morgan Hill
Join the Open Space Authority for a moonlit, four-mile guided hike at Coyote Valley Open Space Preserve. Participants will ascend the Arrowhead Loop Trail at golden hour, watch the sunset with a 360-degree view of Coyote Valley and descend once the moon is shining bright.
Sign up through Eventbrite

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