Tianmushan (Tainmu Mountain) 天目山 is a 1500 metre peak in Li'an County in Zhejiang Province, about 80km from Hangzhou. It is famous for the marvellous stands of Japanese Cedar trees, which tower over the surrounding forest and have gigantic girths and attracts huge nembers of domestic tourists to the natural attractions and the temple near the carpark.
It is a nice place for a weekend away from Hangzhou. If coming from further afield, more time would need to be allowed for travel connections.
There are bus connections from Hangzhou Yellow Dragon Stadium bus station, either direct or via Lin'an. Check at the bus station office which would be better according to your timing.
There are numerous guest houses at the base of the mountain. They usually offer full board and accommodation from Y30 per person for bed and maybe another Y30 for meals, dinner and breakfast. The non-Chinese speaking foreign visitor will find it difficult to communicate with a guest house owner, so it is recommended that the foreign visitor will arrange ahead with a Chinese speaker to make a reservation and give full directions in Chinese script.