Photo: Mx. Granger, CC0 via Wikimedia Commons
A park protecting an area of fascinating mangrove forest along the water, with some nice boardwalks and paved walking paths. There's an adjoining park to the north with a big sandpit which is fun for kids. It's not too big, but nice for an hour or so walking around, though the peaceful atmosphere is spoiled by the screeching noise of metro line 11 trains passing by and the sound of planes taking off from the airport. Avoid coming in the middle of the day—it gets hot.
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深圳市合正艺术博物馆
Private art museum established by businessman Li Weiqing in 2016. Items on display include paintings, calligraphy, ceramics and sculptures.
立新湖 Lìxīn Hú
An attractive reservoir in northeastern Shenzhen surrounded by parks with trees and well-manicured walkways. Adjacent to the lake is Wangniuting Park (望牛亭公园 Wàngniútíng Gōngyuán), with hiking trails on a small hill. The area is very green and good for a lakeside walk—it's not worth making the trip all the way from the city center just for this, but stop by if you're in the area.
凤凰山, Fènghuáng Shān
Literally "Phoenix Mountain", this forested mountain in northwestern Shenzhen is covered with a network of well-maintained hiking trails paved with steps. The main point of interest is Fengyan Temple (凤岩古庙, Fèngyán Gǔmiào), a Buddhist temple partway up the mountain, dating back to the Yuan Dynasty. At the trailhead (凤凰山脚) there are various shops selling food and drinks, including bottled water, which you should definitely buy for the hike if you didn't bring any. Then plan to hike 30–40 minutes (all uphill) to get to the temple complex. The complex has lots of interesting spots scattered around, including fortune tellers, lots of shrines, and a big pool full of turtles and a few lazy fish, surrounded by people pestering them by throwing coins. There are lots of shops selling food, incense, jewelry, and other traditional items for the many pilgrims who make their way up to pray and leave offerings. For more serious hikers, the trails continue higher up on the mountain past the temple. A partial map of the trails can be found at the temple complex, though it's only in Chinese. The trail up to the temple is crowded, especially on weekends, but the trails higher up on the mountain aren't so bad.
Both the temple and the rest of the mountain have views of the surrounding area. Don't miss the two-story lookout tower (望海楼, Wang Hai Lou) in the temple complex. The views make for an incredible contrast between the traditional temple in the middle of the woods and the unending high-rises down below. From the right spot you can make out ships floating in the Pearl River.
The temple complex also has a vegetarian buffet restaurant, Fenghuang Mountain Vegetarian Restaurant (凤凰山素菜馆). This is not the little place with the signs saying "Vegetarian Restaurant" in English (though the food there isn't bad either)—the buffet is located at the other end of the complex; look for signs that say "素菜馆 Su Cai Guan". The buffet costs ¥28 for breakfast, ¥58 for lunch—pay before you enter, at the Ticket Counter outside. If you want to skip the hike, the restaurant (and therefore the temple complex) are also accessible by road.
石岩湖温泉度假村; Shíyánhú Wēnquán Dùjiàcūn
This has been a popular attraction since the 16th century when it was named as one of the "Eight Great Views of Xin'an County" (the county of which Hong Kong and Shenzhen were part). It's on a man-made reservoir at the back of Yangtai Mountain, and is not easy to get to but it is worth the trouble. Water springs from the ground at over 60 °C, but is cooled to about 40 °C before being fed into pools. There are public and private, indoor and outdoor pools.
深圳(宝安)劳务工博物馆, Shenzhen (Bao'an) Migrant Workers Museum
Tells the story of the hundreds of thousands of migrant workers who built Shenzhen and made it into the city it is today. The museum focuses on Bao'an district and celebrates the recent history of the city: Deng Xiaoping's "reform and opening up" and the subsequent fast-paced industrial development that has come to define Shenzhen. Fittingly, the museum itself is located in a former factory.
At the entrance to the museum complex, the first building preserves the look of part of the factory, but that's certainly not all there is to see here. Go up the ramp to the main exhibition hall, which is full of artifacts from the recent history of industrial Shenzhen, including lots of personal items donated by factory workers to give you a window into their lives—love letters, dorm room decorations, and so on. Most of the labels are bilingual in Chinese and English. The second floor, accessible by a staircase around the right side of the building, has a display of lots of beautiful Chinese calligraphy.
This indoor ski arena brings skiing to the tropics, offering a surreal alpine escape in balmy southern China. Covering 10 hectares with five slopes, including one with an 83-metre drop, it’s one of the world’s largest indoor ski resorts. A perfect place to swap flip-flops for skis, even in the middle of summer.