There are many places to visit around Shenzhen in 1-2 days. If it is summer, you can go to xunliao bay in Huidong, swim and eat seafood. The seafood there is very fresh and the price is much cheaper than that in Shenzhen. There are many resort hotels where you can sit in your room and watch the sunrise and sunset at sea and listen to the ebb and flow of the tide. You can also go fishing with fishermen. You can also go to Nankun Mountain Forest Park for a holiday, climb mountains and hike, and enjoy abundant negative oxygen ions. Go to Qingyuan for a hot spring if you are farther away.