Five Canyons Open space connects suburban neighborhoods to a network of trails that access Hayward Area Recreation District facilities, Don Castro, Cull Canyon and the Chabot-to-Garin Ridge Trail.
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One day, not so long ago, grizzly bears roamed here, chowing down on manzanita berries, beneath giant tree-like manzanitas. Those days ended in in the late 1850s, when Jeremiah Morgan hunted them out, reportedly killing 46 bears in a single year. But this rugged wilderness preserve is still home to mountain lions, eagles and coyotes.
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Fitzgerald Marine Reserve tide pools during the January 2, 2026 king tide
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Sibley Volcanic Regional Park offers a self-guided tour of Round Top Volcano, active 10 million years ago. You can pick up a brochure at the Skyline Boulevard staging area. Examples of the park’s rock formations can be viewed at an outdoor display at the entrance. Here are a couple of views from the park and tour.
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Bewick’s wrens take dust baths, often at dusk to remove oil from their feathers and potentially control parasites.
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Close-up of wing: orange, brown, black, peach, amber, almond, purple, violet, blue, turquoise, cobalt, candy pink and magenta scales. Iridescent colors without names. These colors come from the way light reflects off structures in the wing scales in addition to pigmented color
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Winter in the manzanita grove is dramatic. As soon as the milky-pink urn-shaped flowers open around November, Anna’s hummingbirds appear in full force. Their chirps, chatters and wingbeats become the soundscape to the fog drenched hillside.
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