Day 1 You can fly to Huangshan City at night, as only two morning flights are available from Shanghai to Huangshan every week. There are two flights in the evening. Stay overnight at 4 star hotel at downtown.
Day 2 Your guide and your private coach will take you to the national park (2 hours) and get onto the top by cable car. Walking 20 minutes down steps, you will check in your hotel and then out for sightseeing. The well-known scenic spots are as follows: Begin-believe Peak, Freshness Terrace, Bright Top. Cloud-dispelling Pavilion. 
Day 3 Watch sunrise in front of your hotel and back to your hotel for buffet breakfast. Get down to bottom by cable car and you can go to a local village to have a free chat with the farmers£¬ or to a Ming village ---Hongtsun Village, a world cultural heritage, to see the ancient houses and have a free chat with the descendents of the house builder. Then you will be back to the downtown, have a stroll on the early commercial street, with hundreds of shops selling local products and souvenirs. After dinner you can either fly back to Shanghai / Guangzhou or take the next day shuttle bus to Hangzhou ( West Lake) 3 hours.
Please consult http://www.shanghai-huangshan.net for detailed info.