Re RE:Francis :
Hi Francis. You will have several choices if you want to watch pandas in Sichuan. You can go to Giant Panda Breeding Research Base, Bifengxia Panda Base, Chengdu Wildlife World, Wolong Natural Reserve, and Chengdu Zoo to watch pandas.
But my recommendations are Giant Panda Breeding Research Base and Bifengxia Panda Base. These two are the most popular destinations. If you have time, you can even work at Bifengxia Panda Base as a volunteer to get extraordinary experience.
Here are related panda tour packages provided by China Tour Advisors, just for your reference.