Do you need mosquito repellent in Yosemite?

Many mosquitoes are most active at dusk and dawn, mainly during the summer. Be sure to use insect repellent and wear long sleeves and pants or consider staying indoors during these hours.



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Many mosquitoes are most active at dusk and dawn, mainly during the summer. Be sure to use insect repellent and wear long sleeves and pants or consider staying indoors during these hours.

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Stay away from river and creek banks during high water conditions and avoid rock hopping. Stream polished rocks along the water's edge may be slippery when wet or dry. If you choose to cross a stream without a bridge, avoid deep and/or swift water.

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Soft ticks are found mainly in forested foothill and mountain regions above 3,000 feet, including Yosemite National Park. Those who get sick with TBRF are usually infected while visiting mountain areas and staying in cabins or buildings that are infested with rodents and soft ticks.

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16 Big mistakes to avoid in Yosemite National Park
  • 1 - Arriving without a plan! ...
  • 2 - Giving yourself just a day. ...
  • 3 - Thinking the waterfalls are flowing all year round. ...
  • 4 - Heading to Glacier Point for Sunset. ...
  • 5 - Visiting Tunnel View in the middle of the day. ...
  • 6 - Avoiding the epic hikes. ...
  • 7 - Arriving at midday.


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Yosemite Valley sits at 4,000 feet above sea level and is not an area of concern for altitude sickness. When hiking in Yosemite's higher elevations, such as Tuolumne and areas around the rim of the Valley, you will generally be above 8,000 feet and should be conscious of your body's condition.

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If visitors spot a bear while in the park, it is a black bear-not a brown or grizzly bear. The last known grizzly bear was shot outside the Yosemite region in the early 1920s; the species no longer exists in California despite its presence on the California state flag.

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No matter which season you are planning to visit Yosemite, layers will be important. During the spring, summer, or fall, we recommend wearing a base of shorts and a tank top or t-shirt then layering from there. Cargo pants that have removable sections are great.

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For dinner, we require gentlemen to wear long pants and a shirt with a collar, and ask women to wear a dress, skirt, or long pants with a blouse. Please refrain from wearing shorts, T-shirts, tank tops, flip-flops, and baseball caps. Children over the age of four are asked to dress for the occasion as well.

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Go for a Nighttime Nature Walk in Yosemite National Park A 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.

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May through September is the most popular time in Yosemite These months correspond with the best weather and are also when all the roads, trails, lodging, shuttles and attractions in the park are open. That includes its most famous drive, Tioga Rd, a 64-mile-long scenic byway that closes when the snow begins to fall.

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Our water is perfectly safe to drink, bath and swim in, but we recommend that you bring bottled water for drinking, due to the fact that our water has a high mineral content.

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