How long from Courtyard by Marriott Shanghai Int Tourism & Resorts Zone to The Bund ?

If 4 persons, we want to go to Bund at 20.00 PM , is itu save to take Metro? Or better take taxi? How much does it cost if by Metro? And if by taxi?

Ia there any nite market nearby the Bund? For having local Snack? And what time we supposed to go back to hotel, if by Metro? Kindly give detail direction pse? Thank u very much.