You can take a nice walk along the Pearl River. The area has a nice walking path which is very popular for people of all ages.
If you are in Guagnzhou, do walk up to the riverfront. Take a ferry ride along the Pearl River, which goes under 5 bridges lit up to delight cruise revellers. The cruise takes one past the Guangzhou tower is lights up in an array of beautiful colors past sunset. The River has the small ships for recreation of visitors & regular Passenger water bus for the local people.
The view is very extraordinary; you can enjoy the view in Pearl River whilst enjoying the local conducting their routine activity like dancing, shuffling, exercising, tango dancing, singing etc.