You can get here from Chengdu by taking a bus to Yibin and then taking a number 4 local bus across town to the other bus station. From there you can catch a bus to the park entrance. The last bus leaves from Yibin to the park at 4pm. It is also possible to hire a taxi from Yibin to the park for around ¥200.

For ¥120 - ¥150 you should be able to hire a car and driver for the day. (For the whole car not per person)