Desert hiking can be a killer, literally. Those planning to do any serious hiking at Saguaro National Park are strongly advised to talk with rangers about their plans before setting out, and then to carry at least a gallon of water per day per person. Rangers do not recommend hiking at all in the summer, when temperatures frequently reach a scorching 115°F (46°C). Because some of the longer trails are difficult to follow, hikers are advised to carry good topographical maps, available at the visitor centers.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.