One of them said they were not from around there and had no idea . We could identify with that . I decided to turn back and try and head in the direction of the highway because I knew it went back to Ambleside . By this time , the sun had disappeared behind the mountain and I was starting to have visions of bedding down under some rock for the night while our eighteen college students wondered what in the world could have become of us .
Question: Why is the narrator looking for a rock ?
The answer to the above question:


They need cover .