The document provides information for participants about an upcoming backpacking trip in the San Jacinto Mountains organized by Mount San Jacinto Pre-O Adventure. The 5-day itinerary includes hiking, camping, and a summit attempt of San Jacinto Peak. Meals and some equipment will be provided. Participants should bring appropriate clothing and gear based on weather conditions, which can vary from hot to cold. No experience is required but participants must be prepared to hike 4-8 miles per day. Risks include injury from slips/falls as well as heat and weather hazards.