we went here as we heard it was was less crowded than the other center nearer chengdu . we hired a private chaffeur for the day to include also other excursion. left our hotel located in center chengdu at 8 am and arrived around 10. luckily it rained a lot the day before so the air was fresh and pandas still outside chilling ~ in the summer they go inside to their climatized areas around 9:30 so make sure to arrive early otherwise they might be inside. it was awesome !