1. Visit Shenzhen Science Park: Shenzhen is the birthplace of innovation and technology in China. Shenzhen Science Park is a place where many high-tech enterprises gather, and you can learn about the latest scientific and technological achievements and innovative ideas.

2. Visit Happy Valley: Happy Valley is one of the largest theme parks in Shenzhen, with all kinds of exciting amusement facilities and wonderful performances, which are suitable for the whole family to play together.

3. Go to Shenzhen Bay Park: Shenzhen Bay Park is a beautiful seaside park, where you can enjoy the charming sea view and night view of the city, take a walk, ride a bike or have a picnic.

4. Visit Huaqiang North Electronic Market: Huaqiang North is one of the largest electronic products markets in China, where you can buy various electronic products and accessories at relatively low prices.

5. Taste delicious food: There are many delicious foods worth trying in Shenzhen, such as Chaoshan beef hot pot, Shenzhen seafood, mom rabbit head and other special foods.

6. Visit cultural and artistic places in Shenzhen, such as OCT, Dameisha Sea World and Shenzhen Museum. You can learn about the history and culture of Shenzhen.

7. Enjoy the night view: The night view of Shenzhen is spectacular. You can choose to go to OCT East or Shekou Haibin Avenue in Nanshan District to enjoy the charming night view.

8. Go to the surrounding attractions: For example, going to the Window of the World and Dameisha seaside resort around Shenzhen can enrich the itinerary.

I hope the above suggestions will help your trip to Shenzhen!