Is my ticket at Jiuzhaigou valid for 2 days or only 1 day?

I read somewhere that if the photos are taken and printed onto the ticket, this is valid for the second day for park entry as well. I know that Bus tickets will be additional for the second day. Other sites say that the ticket will be valid only for one day. Could you please let me know what is the current practice? We will be traveling in the middle of October. Many thanks