Upcoming Events

Are you interested in volunteering with the Open Space Authority? Join us for an engaging and interactive volunteer training session where you’ll learn all about the Authority while exploring effective ways to connect with preserve visitors and community members. This training is ideal for volunteers interested in community outreach opportunities, events, trail patrols and more.

Get your heart pumping with a 5.5-mile hike at Máyyan ‘Ooyákma - Coyote Ridge Open Space Preserve while learning all about tule elk!

Join the Open Space Authority and the San Jose Astronomical Association (SJAA) for a star party at Rancho Cañada del Oro Open Space Preserve! Docent astronomers will set up their telescopes to help you get the most knowledge and enjoyment out of the dark starry night sky.

Join Open Space Authority staff at Rancho Cañada del Oro as we work together to remove stinkwort, an invasive plant that threatens native grasslands and increases wildfire risk. No prior experience is needed. Staff will provide training, tools and project supplies.

Calling all artists, craftspeople, adventurers and dungeon masters! Get your paintbrushes ready and join us at Sierra Vista Open Space Preserve to paint minifigures while surrounded by open grasslands and wildlife. A limited amount of paint and minifigures will be provided (while supplies last).

The Open Space Authority is proud to sponsor Viva CalleSJ! Into the Valley is a brand-new, 6-mile Open Streets route celebrating the communities, history, and natural beauty of South San José. Come visit our booth at the Activity Hub.

Wildlife Service (USFWS) to celebrate the beauty of nature and community for Latino Conservation Week! As the sun sets, participants will enjoy a sensory walk at Little Uvas Preserve. Once it’s dark, our astro-docents will use telescopes to help attendees view the moon and other astrological wonders.

The Open Space Authority is proud to sponsor the 19th Annual Luna Park Chalk Art Festival, a colorful day of art, music, food, vendors and community at Backesto Park! Come visit our booth at this free, family friendly festival!

Enjoy a slow, gently paced two-mile walk along Rancho Cañada del Oro's flat Longwall Canyon Trail as a docent helps you search for the elusive California ebony tarantula (Aphonopelma eutylenum). Learn about the tarantula’s amazing lifestyle and how these fascinating animals survive in the wild.