Dear Sam,
Thanks for contacting Top China Travel!
There are two bus stations where there is coach leaving for Huangshan. One is the bus station located in the North Square of Suzhou Railway Station, the other is Suzhou South Bus Station. You may get to the nearest or the most convenient bus station to hop on the bus.
The bus from the North Square of Suzhou Railway Station departs at 6:50am daily. And it takes about 5 hours to reach the bus station in Tongkou Town(nearer to Mount Huangshan Scenic Area compared with Tunxi Bus Station).
The bus from Suzhou South Bus Station departs at 7:30am daily. And it takes about 5 hours to reach the bus station in Tongkou Town as well (nearer to Mount Huangshan Scenic Area compared with Tunxi Bus Station).
For return bus from Huangshan to Suzhou, you have to go to Huangshan Bus Station at Tunxi (the heart area of Huangshan city, about 1 hour's driving away from Mt.Huangshan Scenic Area)to get on the coach. There are three buses leaving for Suzhou every day: 7:00am,11:10 and 15:10pm. The time takes about 5 hours.
Note: the info is updated on May 4, 2016. The bus Schedule may change as time passes. You'd better go to the bus station to check the bus schedule in person.
Any further request or question, please feel free to contact with us.