cost-effective travel recommendation:

Accommodation: Personally, I think it will be better to live in Shenzhen Youth Hostel (but this one in Shenzhen needs to be booked in advance, otherwise there will probably be no seats), for two reasons. First, the price of a bed is generally around 5 yuan, which is self-help and the price is not bad; Second, it's in Nanshan Creative Park, where the environment is very good and creative. If you can live there, I think your impression will be better. It's close to Happy Valley, Window of the World and splendid china, but it's far from the East Gate Pedestrian Street in Luohu, but the traffic may be inconvenient at night. If you accept walking 15 miles to the subway station, you can't say it's inconvenient.

the first day: Happy Valley (the ticket is small and expensive in 2 yuan) and/or OCT East (in Yantian District, which is far away, but I personally think it is the best scenic spot in Shenzhen. One of the Grand Canyon scenic spots (the ticket for 17 yuan) is similar to Happy Valley, and the other scenic spot, Chaxi Valley, is dominated by scenery), and you can play for one day, but it is hard to wait in line if there are many people, so you have to go at the earliest time of opening the park.

the next day: free scenic spot: I spent two or three hours in Shenzhen Garden Expo Park near Nanshan Creative Park (free of charge), and in the afternoon I went to the civic center, where there was Lotus Hill Park (bronze statue of Deng Xiaoping), the library was free to visit, and the new museum was built (it was closed on Monday for about two or three hours, which was especially recommended). I thought it was nothing before, but after I went there, I felt that this museum was very different from other museums and could not be built. Unlike other museums, which are only separated by a glass, we finally go to Xiadongmen Old Street (a must-see for Shenzhen) and go to Hubei Village (a 7-day hotel) to eat Chaoshan casserole porridge in the evening (1 yuan per person is very good, and there are many other Chaoshan delicacies there, the price is good)

On the third day: depending on your wishes, you can wander around Nanshan Creative Park by yourself during the day, and you can go to Mangrove Beach Park (usually in the evening). There is nothing to buy there), Nanshan Creative Park is relatively convenient to take a bus at the bus stop of the police academy. It takes about 1 minutes to sit there, and then at night, you can go to the Happy Coast (not far from the mangrove forest) and the luxurious business district, where there is a water curtain performance (it seems to start at 8 o'clock in the evening, one hour), which is quite good. If you don't buy tickets (it seems to be about 12 tickets), you can watch it on a bridge over there.