There are 2 Panda Breeding and Research Base in Sichuan Province. One is Chengdu Giant Panda Breeding and Research Base, the other one is Ya'an Bifengxia Panda Breeding Base.
The Chengdu Breeding Base was founded at 1989,and Ya'an Bifengxia opened at 2003.
Many tourists are quite confused which one should visit. I would like to give my opinion:
Basicly I don't think the setting between the Ya'an Bifengxia and Chengdu Breeding Research Base are much different. Pandas in both of the 2 places are only living inside the separated enclosures with trees and lawn growing well.The Breeding Bases are divided into nursery enclosure,teenager,sub-adult,adult enclosures. Some of the enclosures seems smaller than 100 ㎡,but most of the enclosure are big enough for the pandas to do exercise,Actually, pandas in the enclosures are no much activity, the 2 principal body exercise are eating and sleeping,and as getting older,they do less exercise and sleep more.
The biggest difference between the 2 Breeding Base is the way to access.You have to spend 2.5 hours to reach the Bifengxia from Chengdu(150km), but only 30 min taxi ride to Chengdu Breeding Base from Chengdu down town,so if your time is sufficient , go and visit both, if not skip the Bifengxia. Spend more time in exploring the Chengdu Base,pay a visit to the No.2 enclosure and the Moon Nursery up to the hill,you will find the Base is more like a pretty park with peaceful nature setting. The quantity in Chengdu is bigger and pandas are cleaner.Because the Ya'an is a rainy city,the pandas there are quite muddy. I estimate the quantity of Pandas in Bifengxia is no more than 25,which is only half of that in Chengdu Base.
One of the advantage of Bifengxia is the lower temperature because of the high altitude there.The temperature in Chengdu could be as high as 34℃ in Summer(July-August), Because Pandas adapt to cold environment, Bifengxia is a nice place for them to escape from the hit during Summer.
The one thing you can do in Bifengxia is that you can have a wonderful hiking in the valley with pretty waterfall and forest.Do not miss it !
The admission fee to Chengdu Breeding Base is CNY58/PP,and CNY118/PP to Bifengxia.