Geography of the Yosemite area June (the snowmelt season). Located in Yosemite Valley, the Yosemite Falls is the highest in North America at . Also in Yosemite Valley is the much lower volume Ribbon Falls, which has the highest single vertical drop, . Perhaps the most prominent of the Yosemite Valley waterfalls is Bridalveil Fall, which is the waterfall seen from the Tunnel View viewpoint at the east end of the Wawona Tunnel. Wapama Falls in Hetch Hetchy Valley is another notable waterfall. Hundreds of ephemeral waterfalls also exist in the park. All glaciers in the park are relatively small glaciers that occupy areas that
Sai Yok National Park of the year here is from December to February, while the rainiest time is from May to October. Within the park are remains of a bridge on the Burma Railway and of a camp used by Japanese troops during World War II. In 1978, the Russian roulette scenes of the film "The Deer Hunter" were filmed in the park. On 27 October 1980, Sai Yok became Thailand's 11th national park. The park's major attractions are its waterfalls, including Sai Yok Yai waterfall which flows into the Khwae Noi river. Sai Yok Yai Lek waterfall lies south of Sai Yok Yai