Behind the West lake, South west of all the tourist main spots, on River Melling South Rd you will find the beautiful fields of tea.
Although you can take a bus to cover this area, the best way although a bit more work would be to bike through. Having time to view the beauty of the farm fields and the several small rural town like spots that you can stop and drink tea. Almost anywhere there is a place to eat or bar like establishment you will be able to get great quality home grown tea.
For more Photos on this and other travels.... www.si36studios.com or specifically for China and Hangzhou go here http://www.flickr.com/photos/si36studios/collections/72157629243893294/