For instance, when the temperature is 98 degrees in Big Pine, it will be approximately 85 degree in Grandview Campground. At Schulman Grove, the temperature drops to a comfortable 72 degrees, and up at patriarch grove it can be less than 60 degrees. Even the nicest warm summer morning can end with a sleet and hail thunderstorm in the afternoon. In the spring and fall, the air can be very cold, so carry adequate clothing. As there is one-third less oxygen available at 10,000 feet than at sea level, some people suffer from altitude sickness.
Symptoms are shortness of breath, headache, extreme fatigue, nausea, and dizziness.
Slowing the pace and breathing more deeply usually brings relief. In severe cases, travel to lower elevations inmediately. During the first days of high elevation exposure, blood pressure elevates sharply. People with heart problems should consult their physicians before planning a trip to the mountains. Dehydration is common in this dry clinute, so bring ample amounts of drinking water.