To Yandgdi Pier

At Guilin Railway Station or the South Railway Station, there are buses to Yangdi. Upon arrival at Yangdi Lukou, you can catch a bus to Yangdi ferry terminal directly. You can certainly take the ferry to Xingping and continue to Yangshuo.
Actually, it needs some time to wait for the bus and transfer to another bus from Guilin. You'd better set off in the early morning. Upon arrival at Yangdi, it happens to be a good time to take the ferry (bamboo raft).