The caves are in good condition. Arrive early to avoid the crowd. In winter, since it is down season, I had to pay only 80RMB for both Beishan and Baodingshan. Really a good deal!
There are regular buses from Chongqing to Dazu; but buses going out from Dazu are limited. I intended to go to Emei/Leshan from here; but I had to go to Zigong (Sichuan) first and take it from there.