It really is one of the most spectacular and amazing places in China. I visited it in October and I was lucky to see a perfectly clear sky with no clouds (however, I missed a chance to see this mysterious cloudy view as on the postcards). I am a "trecking enthusiats", but at that very moment I was not in a good shape...after reading some of the posts, I was affraid I would not make it. But, to be honest, if you walk slowly and if you do not overexert youself, it is not a difficult path. There are lots of steps but they are not very steep. If you do not feel perfectly well, it is better to take a cable car-it allows you to save more energy for trecking around the peaks (not trecking up in the wood, as this is excactly what you see during trecking to the upper cable-car station). The views from the cable car are amazingly spectacular. The cost of a cable car is 80Y up and 80Y down..the cost of entrance to Huangshan is 230Y-so it is better to go there as early as you can-to see as much as you can (be prepared for very long queues-even in the low season). It is good to take lots of water and some food with you. You can buy something on the way, but it is really expensive. You can also have a dinner in one of the hotels up in the mountains. And be prepared for changeable weather conditions-although at the bottom of the mountain it can be hot-at the top there is freezing wind, so the softshell or any windstopper is indispensable (you will meet for sure lots of people in T-shirts shaking from the cold:)). We took the path from the Mercy Light Temple (where we took the cable car up- Jade Screen Telpher) up to the Bright Summit Peak (visited the Guest Greeting Pine, the Lotus Peak, White Goose Range Stop and down to Yunghu Telpher - down walking, not by cable car. It took 5 hours. We read that it is the most spectaculat path-well unfortunately I cannot compare it to any other as because of the limited time we could see only this one. Nevertheless, all I read about it, turned out to be true. The place really looks as if from the fairy tale. While googling, you may find some pictures of Huangshan-thrilling wooden or stone paths looking as if stuck or glued to the sides of the hills-well-you will not find this walking the path we took. Unfortunately, there are not many information about this range in English (you may only find some general info.) and the maps you get in the holet or tourist information are not very accurate, and, what is strange, there are different data on different maps and you do not know which one to follow. Fortunately, up the mountains, there are lots of signs in English, so you will not get lost.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.