Be especially careful with children around the canyon edges; drop-offs are steep and not all areas are protected by railings. During thunderstorms avoid isolated trees and open areas and, if possible, stay in your vehicle to protect against lightning strikes. There is little danger from mountain lions, but should one be encountered gather small children, back away slowly, and make yourself look as large as possible.
Altitude in the park reaches as high as 9,100 feet, so most visitors will experience some shortness of breath while hiking, and in extreme cases headaches and respiratory problems may be experienced. For those not used to the elevation, pace yourself and take a few days to acclimate before attempting any strenuous physical activity.
Unlike the other national parks of southern Utah, heat is not a major problem due to the park's high elevation. Temperatures rarely reach 90°F 32°C, even during the height of day in summer months.
fees/permits
Private, non-commercial vehicles must pay a $25 entrance fee that is good for 7 days. Holders of the National Park Pass $80, which allows access to all National Parks for one year, do not have to pay this fee. For individuals applies to motorcycles, bicyclists, or individuals traveling on foot the fee is $12 for 7 days National Park Pass holders are again exempt. The entrance fee includes free and unlimited use of the park shuttles during the summer.