Visa requirements, US green card holder enter Shanghai 44 hours before cruise startswe Rae a group,?

We are a group of 5 (4 US citizens and 1 US green card holder), flying to Shanghai from Manila, Phils on 2/11/17, embarking on a Japan/Korea cruise on 2/13/17 and disembarking and leaving Shanghai on 2/18/17. We are planning to schedule a Day tour of Shanghai on 2/12/17.

What is the visa requirement for the US green card holder? Will one if the waiver program apply to him?