I want to go to Mount Hengshan in Nanyue to watch the sunrise these two days. How long does it take to climb from the mountainside to the top? How about climbing the mountain at night? Is it dangerous

I want to go to Mount Hengshan in Nanyue to watch the sunrise these two days. How long does it take to climb from the mountainside to the top? How about climbing the mountain at night? Is it dangerous? It's about five kilometers from the foot of the mountain to the middle of the mountain, and it takes about two hours to walk. It's about seven kilometers from the mountainside to the observation deck, and it takes about three or four hours to walk. (The above speed is for boys) It's certainly faster to go down the mountain, which adds up to three or four hours!

In addition, it is not recommended to watch the sunrise this season, because it is all floating clouds, and the probability of watching the sunrise is too small. Besides, the mountain is too cold to spend the night. I also plan to see the rime again at Christmas.