Some of the top schools in Guangzhou line Yandun Lu, and the No. 7 Middle School (广州市第七中学) and Peizheng Primary School and Middle School (培正小学) dominate the Peizheng Xiaoqu area.
The No. 7 Middle School has been moved, merged with Peizheng across the road, renamed, re-moved and so on many times since its founding in 1888, as documented at this wikipedia entry. The school symbol is a 4-leaf clover, but finding this cache doesn't require too much luck.
As in other parts of Dongshan, there always seem to be some amateur and serious photographers out and about taking in the picturesque streets, especially on weekends and holidays when the weather is clear.