Chengdu Youth and Children’s Palace 成都青少年宫
262 Shuncheng St, Qingyang, Chengdu, 0086 28 8662 8464（I got from google)
My mom sent me there to learn drawing each weekend when I was a kid.(I took Bus route 1)
Lots of choice for you including table-tennis, Olympian math etc
They also have evening project.