Mount Huangshan
The main tourist destination is Mount Huangshan itself. From the Yuping Cable Car/Mercy Light Temple entrance the "Western Steps" lead up for about 14km over spectacular terrain. Allow 6-7 hours for the ascent. If you are fit and have a good head for heights the steep ascent to Celestial Capital Peak is rewarding. From the Yungu Cable Car carpark the ascent by the "Eastern Steps" is easier, taking as little as 2-3 hours. If you choose to descend by the Eastern Steps you can extend the hike by including the Nine Dragon Waterfall area Jiulongpu for an additional charge. Huangshan is most famous for its sun rise and sea of cloud at dawn. However, all these wonders are subject to weather condition. In off seasons, Mount Huangshan can be extremely foggy in the morning. Approach your hotel or hostel counters for some travel tips in this area, normally they are very experienced locals.
Hongcun
Water village. Hongcun is slightly prettier than Xidi, but much more crowded; if pressed for time, you do not need to see both villages. Some very nice restaurants and rustic inns you can stay in preferable to Tunxi.
Xidi
Water village. Some very nice restaurants and rustic inns you can stay in preferable to Tunxi.
Zhuhai
Do not miss this nearby gorgeous valley covered with a bamboo forest. Some very nice restaurants and rustic inns you can stay in preferable to Tunxi.