Suggest the itinerary

On the first day, you may go to the Nanhu Lake, and the nearby Qingxiu Mountain. Take bus line 3, 8, 14, 20, 33, 34, 51, 60, 65, 80, 86, and 215 to Nanhu Gongyuan Station.

On the second day, you may go to the local zoo and the nearby Xinxiu Park. Take bus line 4, 33, 53, or 54 to Dongwuyuan Station.

On the third day, you may go to the People's Park, the Natural Museum, and the Underwater World. The three attractions are located next to one another. You may take bus line 19, 30, 78, or 80 to Renmin Gongyuan Station.

On the fourth day, you may go to Shimen Forest National Park and the nearby Minzu Lake Scenic Area. Take bus line 6, 16, 25 or 39 to Shimen Senlin Gongyuan Station.

On the last lay, you may do some shopping on the Chaoyang Plaza. Take bus line 18 to Chaoyang Guangchang Station.

As for the accommodation, you may stay at the Phoenix Hotel near the main railway station. It is located at no. 63, Chaoyang Road, Xingning District. As I know, the hotel provides some local tours, so you may consult the attendants for detailed informatino upon arrival.