Would this qualify us for the 72 hour tourist visa? There is a family if 6.

Hi we are flying from venice to Beijing ( via helsinki so finnair)on 6th July arriving Beijing Capital on the 7th at 6.30am. We wanted to stay 2 nights in Beijing and do a private day tour to the Great Wall and back and then leave Beijing to go to Hong Kong on Dragonair from the same airport on the Wednesday 9th evening.