cruising to Shanghai, then flying out 3 days after arrival.

Beryel, you need a tourist L type. The fee is 510 pesos. You need to prepare a valid passport, a photocopy of the passport, a filled application form attached with a color personal photo taken within six months, the original and photocopy of your entry permit for Canada, and roundtrip tickets and hotel reservations.

You don't need HK entry permit as long as you won't stay there for more than 90 days.