Who Built the Sibley Labyrinth?

Sibley Volcanic Regional Preserve 6800 Skyline Blvd, Oakland, CA, United States

She built the Sibley labyrinth “as a gift to the world” in 1989. On a 3-mile hike join Helena Mazzariello, the original builder, as she unravels mysteries and myths about labyrinths, their spiritual properties, and how she (secretly) created ours. … Read more

Free

Birds of Fall Walk

Del Valle Regional Park 7000 Del Valle Rd, Livermore, CA, United States

It is time to say goodbye to summer and hello to fall and also welcome in our feathery migratory friends at Del Valle. Discover the diversity of birds migrating through Del Valle and learn why the lake is so important … Read more

Free

Tarantula Hike

Black Diamond Mines Regional Preserve 5175 Somersville Road, Antioch, CA, United States

October is a great month to come to Black Diamond Mines to try and get a glimpse of our eight-legged friends! Join a Naturalist on a 2-mile, uneven terrain hike to learn about tarantula mating season. Click here to find … Read more

Free

Simply Sibley

Sibley Volcanic Regional Preserve 6800 Skyline Blvd, Oakland, CA, United States

Loop around Round Top for views and fresh air while searching for migrating birds. Distance: 2.5-3 miles Ages: 7 years and up --> adult participation is required Drop-in event, no registration necessary Click here to find out more about this … Read more

Free

Vasco Caves Regional Preserve Tour

Round Valley Regional Preserve 19450 Marsh Creek Rd, Brentwood, CA, United States

Join this tour in celebrating National Native American Heritage Month by hiking 2-3 miles through this wild and windswept land which is sacred to local California Indian communities and a refuge for golden eagles, fairy shrimp, and tiger salamanders. The … Read more

Vasco Caves Regional Preserve Tour

Round Valley Regional Preserve 19450 Marsh Creek Rd, Brentwood, CA, United States

Join this tour in celebrating National Native American Heritage Month by hiking 2-3 miles through this wild and windswept land which is sacred to local California Indian communities and a refuge for golden eagles, fairy shrimp, and tiger salamanders. The … Read more

History Hike ABOVE the Mines!

Black Diamond Mines Regional Preserve 5175 Somersville Road, Antioch, CA, United States

Black Diamond Mines Regional Preserve was once teeming with thriving communities. Join a Naturalist on a 2-3 mile hike to learn about the richness of the coal and sand mining history on a hike above the mines. No underground mine … Read more

Free