I am co-leading small group in 2 weeks, Caledonia State Park to Pen Mar. So far, the weather forecast is good. I was planning on hiking southbound and camping at Tumblin Run Shelter. Are there advantages to hiking northbound instead? Also I have heard there is water just north of the shelter. Can anyone confirm running water there or elsewhere in this section? I have read that many PA sections are very dry. One last question, a few people in the group may be looking to camp the night before. I see one camp spot a few miles near Pen Mar on the AT. Are there other spots near one end or the other, on or off the AT? (FYI - we are not using the shelter, we will follow LNT and we are reasonable size group) Thanks for your suggestions.