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Hazards of outdoor recreation
Outdoor recreation, such as hiking, camping, canoeing, cycling, or skiing, entails risks, even if participants do not recklessly place themselves in harm's way. In some circumstances, such as being in remote locations or in extreme weather conditions, even a minor accident may create a dangerous situation that requires survival skills. However, with correct precautions, even fairly adventurous outdoor recreation can be enjoyable and safe.
== General safety measures ==
Every hazard has its own safety measure, and every ailment a particular remedy. A standard precaution for all back country activities is carrying the "ten essentials", a collection of tools chosen for their utility in preventing or reacting to various emergencies.
The common practice of traveling in a group improves safety in all regards. If one person is injured, group members can administer first aid or seek help. A group can avoid poor decisions that a lone traveler might make. If an emergency occurs, a group can pool its muscle power, brain power, and body heat.
Another precaution is informing people outside of the group of the itinerary and expected return time (expected hiking time can be estimated using Naismith's rule). A communication device, such as a cell phone or a satellite phone, may help in the case of an emergency. However, with the exception of mountain tops that are in line-of-sight to populated areas, cell phone coverage in wilderness areas is often quite poor. In the wilderness one should always be prepared to hike out for help, if necessary.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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