we are flying to bejiing

Hello we are flying to Beijing arriving 1310 29/03/2017 and then to Singapore at 1535 29/03/2017 we then take a cruise on the 30th till the 09/04/2017 returning to Shanghai and depart to Beijing airport at 1155 hours arriving Beijing for a flight back the Heathrow UK at 1625 hour on 09/04/2017 what Visa do we require?
Thank you!