At 7am, you will be picked up from lobby of centrally located Changsha hotel, and you will take 2.5-hour bullet train ride to Zhangjiajie( or you will take 5-hour car ride instead if no train tickets are available). You will visit the Zhangjiajie Canyon Glass Bridge this afternoon. Note: If the glass bridge is closed due to the weather, you will visit Huanglong Cave (Yellow Dragon Cave instead).