Here are some quick tips to help you be safe while hiking in Yosemite:
Carry a headlamp on every hike, even short day hikes.
Carry and drink plenty of water (a minimum of 1 quart every 2 hours)
Sturdy footwear with good traction might save an ankle.
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If a bear approaches you or if you are in a campground, picnic area, parking lot, lodging area, or other developed area, act immediately to scare it away. Scare the bear away by yelling aggressively and as loudly as possible until the bear leaves.
Global climate change is impacting Yosemite. Worldwide emissions of greenhouse gases trap heat in the atmosphere, leading to rapid warming observed across the western US. Scientists project that average temperatures in the park may rise by 6.7–10.3°F between 2000 and 2100.
Cellular Phone ServiceYosemite Valley and Tuolumne Meadows have good signals. The best signal is in the Yosemite Village area near the Visitor Center. Signals also tend to be dependable in Crane Flat and right outside the park in El Portal.
Where to See Yosemite Bears. Black bears are scaredy cats. They mainly stay away from humans, but you have a good chance of seeing one in Yosemite National Park among oak trees and meadows. Since they don't like being around humans, black bears live and travel in heavily wooded areas.
Mountain lions—also called cougars, pumas or panthers—roam Yosemite's mountains and valleys. These important predators, native to the Americas, are a natural part of the Yosemite landscape.
Go for a Nighttime Nature Walk in Yosemite National ParkA couple of popular nature walks include a visit to Lower Yosemite Falls or Bridalveil Fall (scheduled to reopen to the public in 2022). For those who enjoy more structure, Yosemite Conservancy also offers an easy 1-2 mile round trip nature walk at sunset.