I'm planning to go to Zhangjiajie Grand Canyon from ZJJ Bus Station, but I want to know:

1/ How can I go back to Central Wulingyuan from Grand Canyon? Can I go by public bus or taxi and how much does it cost?

2/ How can I go from ZJJ Grand Canyon & ZJJ Glass Bridge?

3/ Is it convenient to go by taxi ? Will the driver charge more money than it costs?

Thanks in advane!