After finishing up dinner during the first night of our back packing trip above yosemite valley, we sat by the cliff looking down on the valley. It was the week of horsetail falls and lot of day visitors had come. At night we saw a trail of car lights exiting the park. I wanted to take a long exposure photo to only later realize that there were two climbers identifiable by their head lamps ascending El Capitan. The photo has lot of activities going on it which makes it interesting to me.