Mitchell Canyon Wildflower Hike

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Enjoy a leisurely loop as you hike (2 miles) up Mitchell Canyon to Black Point Trail. Excite your eyes with vivid colors of wildflowers as you gradually climb to vista points within the state park. This route follows Mitchell Creek, … Read more

Mitchell Canyon Medicinal Herb Walk

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Join this meander ( 2 miles hike) around the base of Mount Diablo to explore the medicinal plants growing along the trails at Mitchell Canyon. You will talk about the modern-day uses of the plants you see and discover some … Read more

Bill & Dave Hikes – Gualala Point

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Beautiful views of the ocean, whale season, and redwoods – what more could you want? Join this beautiful hike up north! The famous Bill and Dave Hikes are back! Bill & Dave have retired, but we’re excited to continue in … Read more

Testing the Water

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Join every Sunday morning to track the health of the Delta! You will test for different criteria, recording the water quality changes that affect our ecosystem. This is a drop-in program and no registration is needed. Staff will be on hand … Read more

Nature’s Best Hope presented by Doug Tallamy

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Recent headlines about global insect declines and three billion fewer birds in North America are a bleak reality check about how ineffective our current landscape designs have been at sustaining the plants and animals that sustain us. To create landscapes … Read more

Solstice Sea Star Search

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Together with the Nature Conservancy, the California Academy of Sciences is launching a short campaign to gather observations of sea stars along our coast — the Solstice Sea Star Search! The goal is to search and hopefully find any sea stars … Read more

Hike: Introduction to Lichens

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Perhaps you have seen colorful, bushy, leafy, or scaly lichens clinging to oak trees or covering rocks. Lichens are all around us, and they have fascinating stories to tell! These incredible organisms are diverse, highly adaptable, and play important roles … Read more

Lichen Hike at Rancho Cañada del Oro

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Join this hike (4.5-mile) on the Mayfair Ranch and Longwall Trails to examine the beautiful lichen species that thrive there. In addition to showing hikers how to recognize some of the most common lichens, you will also learn about lichen … Read more

American Sign Language Nature Walk

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Welcoming deaf communities of the Bay Area to join a guided hike with professional sign language interpreters! Discover the beauty of Sunol and explore the unique park ecosystem during this nature walk along Camp Ohlone Road. It is a wide, gravel … Read more

Discover Nature Lecture: Living with Lions

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In California, mountain lions are at the top of the food chain and play critical roles in the maintenance and functioning of our natural ecosystems. However, mountain lions live a fragile existence as more of us choose to live and … Read more