Longjing and other tea fields further west are best visited during the harvest period, usually from the first week of March till after May Holiday, when everyone is out in the field picking tea and the tea that you can purchase is of the best quality (tea crops from later in the year have had their leaves damaged by the rain). Entrance to the fields is free of charge.
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虎跑梦泉 Hǔpǎomèngquán
A spring as well as a scenic and historic destination. The area includes wooded pathways, streams, bamboo groves, tea houses, historic structures, as well as the spring itself and other sights. Admission is ¥15. Tea brewed with the high-quality Tiger Spring water may be purchased for about ¥20 a glass.
Lin Biao Hangzhou Palace (林彪杭州行宮)
A secret military command center built by Lin Biao in April 1970, hence the name "704" project. The underground tunnels cover more than with many heavy doors that could withstand nuclear and gas attack, and an elevator that directly reaches Lin Biao's bedroom.
花港观鱼, Huagangguanyu
Its famous points are fishes, flowers and ponds.
皇山公园 Yuhuang Shan Gong Yuan
One of the least-visited sites in Hangzhou despite its somewhat central location. The main temple on top of the hill offers a wonderful view of the city and lake below, and has a restaurant next door. There is another temple partway up the hill. The area can provide a quiet escape and a nice hike, as well as the chance to visit one of the few Daoist sites in the area (most other local temples are Buddhist). It is located directly south of Leifeng Pagoda. The main entrance isn't far from the Silk Museum. If you are playing along with the "10 Scenes of the West Lake" scavenger hunt still, the one that applies to the top of this hill is "clouds flying over Jade Emperor Hill".
双峰插云 Shuāngfēngchāyún
The view of the highest mountains north and south of the lake, which can rise above the clouds.
This is more than 3 km long and one road west of the Su Causeway. It starts at the intersection of Beishan and Shuguang Road (which becomes Yanggong Causeway once you are south of this intersection); the causeway runs north-south. Yanggong Causeway includes Quyuan Garden (aka Qu Garden aka Qu Courtyard), which is the most popular spot to see tons of lotus blossoms (late spring > summer). The water area to the west of the top of Yanggong Causeway is Maojiabu Scenic area, with orchids blended into the water scenery. Another tourist spot on Yanggong Causeway is Mr. Guo's Villa, which was built in 1907 and is considered one of the most "classical" gardens in Hangzhou. At the southern end of the causeway, just before Nanshan Road, is a fish-viewing pond.