Upcoming Events

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.

Enjoy a scenic morning stroll at Sierra Vista Open Space Preserve while knowledgeable docents help attendees spot local birds. All experience levels are welcome!

The Open Space Authority is proud to sponsor San Jose Reid Hillview Airport Community Day a family-friendly free science, arts, aviation and music community festival.