The park's greatest danger is weather. Summer temperatures often exceed 100 ° F, but even during the spring and fall visitors should plan on drinking one gallon of water per day. When hiking be aware that it can be easy to get lost in the twisting canyons, so let someone know where you are going and bring more food and water than you think you'll need. During storms avoid high open areas which can be prone to lightning strikes. In addition, be extremely cautious in narrow canyons as flash floods can occur with even a small amount of precipitation. If you are in a canyon and it begins to rain, look for higher ground immediately; if you can hear the sounds of floodwaters approaching or notice rising water around you it is already too late to seek safety. During winter ice can make roads dangerous, and visitors may want to consider bringing tire chains.
fees/permits
Entrance fees are $5 for individuals on foot, bike or motorcycle, and $10 for private vehicles fees are good for seven days. A Local Passport may be purchased for $25 and allows unlimited entry to Canyonlands National Park, Arches National Park, Hovenweep National Monument and Natural Bridges National Monument for one year. Alternatively, the $80 National Parks Pass allows entry to all National Park areas for one year.
Fees may be waived for groups whose purpose is educational rather than recreational; check with the park in advance for fee waiver details.