Free Visitor application

I arrive by air to Hong Kong dec.6th. On dec. 7, I travel by Holland America( cruise ship westerdam )to Xiamen dec.9 arriving 8:00 departing 6:00pm. dec 11 arrive in shanghai At 10:00 am leaving December 12 at 6 pm. Do I need a visa to visit and can I get it at the cruise terminal.