But be prepared before you head out on the hiking trail. When you go into the wilderness or the mountains, you can't rely on a cellular phone to get you out of trouble. But most hikers are ill prepared in terms of knowledge and supplies, according to a survey conducted by Colorado doctors. Water is one of the most basic supplies you should carry. Take enough to keep you hydrated for the length of your hike.
Dehydration is a major health risk when exercising outdoors, and high altitudes only make it worse.
Also pack plenty of sunblock. Higher altitudes increase your risk for sunburn. Hiking in the mountains has its own risks. Even in summer, hypothermia, or dangerously low body temperature, is a danger. Being in the mountains also can put you at increased risk for lightning strikes.