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Alum Rock Park is located in a canyon in the Diablo Range foothills on the east side of San Jose. The park offers 13 miles (21 km) of trails, varying from fairly level along Penitencia Creek to sharp switchbacks climbing to the ridges to the South Rim Trail and the North Rim Trail. The narrow floor of the canyon includes a visitor center, picnic areas, a playground, and sand volleyball pits.

So nice right now. The bridges are stunning.

A worthy hike! Exposed enough to require head cover in heat. I love this loop. You can easily lengthen or shorten it as desired. So good. Note: mountain bikes predominate, and I've seen a rattler here as well. Best to keep your ears open for both hazards. Great hike!

Nice warm up walk.

One of my all time favorite hikes. Not too hard. Great hiking through tree shaded north slope trails. Beware: I have personally had all too close brush with a rattler here. I've also heard credible reports of mountain lion sightings on this trail. Two words: Situational Awareness.

Traverses most of the floor of the park valley. Great walk if you're aiming to just relax. Beautiful foliage. Lots of park visitors.

trail running
13 days ago

Simple hike, not too steep for a long period and there are benches. bring water, it's getting warm out!

Just did this hike and I really liked the weather loop you can connect to. Easy to talk and hike or good for beginners.

Wow it is real beautiful here. The stream runs all the way through and it's so peaceful.