The park recommends one liter of water per person per hour for this hike and warns that backcountry water is scarce or unreliable. Carry your full supply; do not plan to refill along the route. Start early enough to avoid the worst of summer heat and to leave daylight for the return. Dogs are not allowed on this trail; service animals are permitted. Overnight backcountry travel has separate permit rules, but this description is for the day hike.
Elephant Hill Trailhead is marked as backcountry parking. Getting there means driving the rough Elephant Hill four-wheel-drive road, which the park classifies as highly technical and requiring high-clearance four-wheel drive. Check the current road guidance and your vehicle's suitability before committing to the trail. Parking capacity, restrooms and drinking water at the trailhead were not confirmed, so arrive prepared to be self-sufficient.