Calendar

TM Volunteer support request for up to four TM Volunteers on this day of weed eating and brushing at Upper Penitencia. All volunteers who sign up should meet staff in the Sierra Vista OSP staging area. Due to travel time, this work day begins at 9am ...

We are seeking two (2) amazing volunteers to represent the Authority at Delano Manongs Park on Wednesday July 1st for the City of San José Parks, Recreation and Neighborhood Services Viva Parks summer event series. We will need two volunteers to ar...

We are seeking five volunteer ambassadors to help represent OSA by walking in the 2026 Morgan Hill Freedom Fest Parade on Saturday July 4, 2026. The parade begins at 10am. Shift time will be approximately 9:30am-12:30pm with goal to bring extra fun...

TM Volunteer request for up to eight Trail Master volunteers to help with this day of field work. We will using weed whips to address the riparian zone and road corridor area. Trail Master volunteers should pack their provided hi-vis vest for both d...

We are seeking two (2) amazing volunteers to represent the Authority at Starbird Park on Thursday July 9th for the City of San José Parks, Recreation and Neighborhood Services Viva Parks summer event series. We will need two volunteers to arrive by...

On July 11 we will be visiting and removing stinkwort from the Laguna Seca dam. The goal is to hand-pull the plant before it begins flowering and dropping seeds. Removing this invasive species will help us restore native grasslands around this histo...

We need a docent and two sweeps to lead this hike for a group of about 20 participants from Valley Transportation Authority at Little Uvas Preserve, starting at 8:30 a.m. They are seeking general information about birds, flowering plants and trees a...

Bill D., Nicole J. and Philip K. will be leading two independent Geology Hikes at MOCR. Details: Title Shift Time Hike Time Route Geology Hike 8:00 a.m. to 1 p.m.  8:30 a.m. to 12:30 p.m. Up Serpentine Full Loop Serpentine Saunter 8:00...

Bill D., Nicole J. and Philip K. will be leading two independent Geology Hikes at MOCR. Details: Title Shift Time Hike Time Route Geology Hike 8:00 a.m. to 1 p.m.  8:30 a.m. to 12:30 p.m. Up Serpentine Full Loop Serpentine Saunter 8:00...

TM Volunteer request for up to eight Trail Master volunteers to help with this day of field work. We will using weed whips to address the riparian zone and road corridor area. Trail Master volunteers should pack their provided hi-vis vest for both d...

We will have a gentle walk sharing stories, advice, and general kindness and comfort for those who are grieving. We will be at North Coyote Valley Hilltop in July. This month we will host one program, only.While the walk will be from 7:00 p.m. to ...

TM Volunteer support request for up to four TM Volunteers on this day of brushing and weedeating at Upper Penitencia. All volunteers who sign up should meet staff in the Sierra Vista OSP staging area. Due to travel time to the work site, this Trail M...

We are seeking two (2) amazing volunteers to represent the Authority at Arena Green (East) on Thursday July 16th for the City of San José Parks, Recreation and Neighborhood Services Viva Parks summer event series. We will need two volunteers to arr...

TM Volunteer support request for up to four TM Volunteers on this day of brushing and weedeating at Upper Penitencia. All volunteers who sign up should meet staff in the Sierra Vista OSP staging area. Due to travel time to the work site, this Trail M...

Join us for upcoming opportunities to enhance your knowledge as a docent or volunteer with the Open Space Authority. These sessions are designed to provide knowledge and practical experience to help enhance our programs for the public. Come learn wi...

TM Volunteer support request for the Furtado Barn restoration site at Sierra Vista OSP. Please arrive no later than 9:00 a.m. and park in the main staging area.  Space for 4 volunteers. Volunteer Trail Masters should bring all PPE. Please bring...

Nicole J  will be leading a Silent Hike at Ulistac Natural Area.We would like to have 3 volunteers to come help with this easy walk Ulistac. Plan to bring your volunteer uniform, sun protection, food, water, close-toed shoes and layers. As a sweep ...

Join us for upcoming opportunities to enhance your knowledge as a docent or volunteer with the Open Space Authority. These sessions are designed to provide knowledge and practical experience to help enhance our programs for the public. Come learn wi...

We're seeking 5 volunteers to help with Starry Nights each month in 2026! ⭐The BasicsVolunteer shift date & time: Varies - specific times shown in YELLOW belowProgram Time: Varies - shown below in whiteNote: the program run time is NOT the vol...

We are looking for 3 volunteers to help with Binocular Stargazing events at Tilton Ranch Complex June, July, and/or August from 9:00pm - 11:30pm. Dates (pick one or all!):June 6, 2026July 18, 2026August 8, 2026Shift time: 9:00 PM - 11:30 PMProgram ...

Kat will be at Sierra Vista to open the gate for sunrise viewing and would love to have your help!  We would like to have 3 volunteers to come help park folks and set them up for a peaceful morning. . Please plan to arrive at 5:15 a.m. Plan to bring...

Trail Master support request to help with seasonal maintenance of North Coyote Valley along Santa Teresa Boulevard. Attending volunteers should meet staff on the dam at Laguna Seca, located beyond the quail gate, NCO3, off Santa Teresa Blvd. Pack hi...

We are seeking two (2) amazing volunteers to represent the Authority at Los Paseos Park on Thursday July 23rd for the City of San José Parks, Recreation and Neighborhood Services Viva Parks summer event series. We will need two volunteers to arrive...

We are seeking two amazing volunteers to represent the Authority at the San Andreas Regional Center's Annual Superhero Festival at Almaden Lake Park along OSA Staff.  This event occurs on July 25 from 10 a.m. to 2 pm. We will need two volunteers to...

TM Volunteer support request for this day of invasive species maintenance. The crew will be removing coyote brush to make room for other natives to grow as well as removing some non-natives plants at the sites.The meeting point for the day can be ...

We are seeking 3 preserve stewards to support our Meditation Program with Dhyan Foundation!We will be hosting another pilot meditation session with Dhyan Foundation! After this session, we will determine whether this will continue as a series.We enco...

Help us engage our communities at Raptor Encounter! We need two volunteers to support the OSA information booth during this event.  The event runs from 5:30pm-8:00pm. on Sunday July 26, 2026. Volunteer shift will be 5:00pm-8:30pm. Set up starting a...

We are seeking two (2) amazing volunteers to represent the Authority at Calabazas Park on Wednesday July 29th for the City of San José Parks, Recreation and Neighborhood Services Viva Parks summer event series. We will need two volunteers to arrive...

TM Volunteer support request for the Furtado Barn restoration site at Sierra Vista OSP. Please arrive no later than 9:00 a.m. and park in the main staging area.  Space for 4 volunteers. Volunteer Trail Masters should bring all PPE. Please bring...

TM Volunteer support request for the Furtado Barn restoration site at Sierra Vista OSP. Please arrive no later than 9:00 a.m. and park in the main staging area.  Space for 4 volunteers. Volunteer Trail Masters should bring all PPE. Please bring...