不能错过之旅

　　
　　Hetch Hetchy 赫弛赫奇峡谷
　　Ø Wapama Falls (5 mi / 8 km round-trip). Starting from the O'Shaugnessy Dam, this easy trail leads to the bottom Wapama Falls (and Tueeulala Falls in spring).
　　
　　Ø Rancheria Falls (13.4 mi / 21.4 km round-trip). A moderately difficult hike that starts from the O'Shaugnessy Dam and provides numerous views of the Hetch Hetch Valley.
　　
　　Ø Poopenaut Valley (3 mi / 4.8 km round-trip). This oddly named trail begins four miles from the Hetch Hetchy Entrance Station and provides quick access to the Tuolumne River, descending 1,229 feet (735 m) to the river below O'Shaugnessy Dam.
　　
　　Ø Smith Peak (12.5 mi / 20 km round-trip). A strenuous trail from the Hetch Hetchy Ranger Station to Smith Peak. Forests and meadows eventually give way to great views of the Hetch Hetchy area.
　　
　　Rock climbing 攀岩
　　The Valley also offers some of the most challenging and spectacular rock climbing in North America, with vertical faces 3,000 and more feet tall. At the current time, wilderness permits are not required for nights spent on a wall, but it is illegal to camp at the base of any wall in Yosemite Valley.
　　
　　Additional regulations:
　　i. Fight litter! Don't toss anything off a wall, even if you intend to pick it up later. Don't leave food or water at the top or on ledges "for future parties". Set a good example by picking up any litter you see, including tape wads and cigarette butts.
　　ii. Don't leave fixed ropes as permanent fixtures on approaches and descents. These are considered abandoned property and will be removed.
　　iii. Minimize erosion on your approach and descent. If an obvious main trail has been created, use it. Go slow on the way down to avoid pushing soil down the hill. Avoid walking on vegetation whenever possible.
　　iv. If you need to build a fire for survival during an unplanned bivouac on the summit, use an existing fire ring. Building a new fire ring or windbreak is prohibited. Make sure your fire is completely out before you leave.
　　v. Clean extra, rotting slings off anchors when you descend. Bring earth-toned slings to leave on anchors.
　　vi. Check the Camp 4 Kiosk or the Mountain Shop for the current Peregrine Falcon closures.
　　vii. On first ascents: Please think about the impacts that will be caused by your new climb- Is the approach susceptible to erosion? Is there a lot of vegetation on the rock? "Gardening", e.g. killing plants, is illegal in Yosemite. Can the climb be done with a minimum of bolts? Motorized drills are prohibited.
　　
　　Horseback riding 骑马
　　There are still commercial horseback-riding concessions in the Yosemite Valley, Wawona and Tuolumne Meadows areas.
　　
　　Golf 高尔夫
　　There is a championship 18-hole golf course in Wawona Meadow in the South end of the Park, right next door to the Wawona Lodge and stables.
　　
　　Skiing 滑雪
　　Badger Pass is the oldest ski area in California, and offers both downhill and cross-country trails. For cross-country skiers the park offers over 350 miles of trails, with 90 miles of marked trails and 25 miles of groomed trails originating at Badger Pass. Downhill skiing options include ten runs at Badger Pass, with lifts operating daily from 9:00 AM to 4:00 PM during the ski season. Note that the majority of these runs are for beginners and moderate skiers, so thrill seekers may wish to ski elsewhere.
　　
　　
　　Key words 单词注释
　　horseshoe n. 马蹄铁
　　sedimentary rock 水成岩
　　vantage point n. 有利位置
　　coniferous tree 针叶林
　　elk n. 麋鹿
　　outfitter n. 旅游用品商
　　biological diversity 生物差异
　　chaparral n. 丛林
　　monolith n. 独块巨石
　　year-round adj. 整年的
　　sub-alpine meadow 亚膏山草甸
　　round-trip n. 往返旅行
　　railed-in adj. 用栏杆围住的
　　turnoff n. 岔道
　　picknicking 野餐
　　panoramic view 全景
　　elevation gain 爬高
　　bivouac n. 露营，野营