beijing poolDoubletree by Hilton Beijing. If you’re looking for a relaxing pool in Beijing, Doubletree by Hilton Beijing is a great option. You can get access to the pool on Sundays, when the hotel throws its Sunday BBQ (RMB228). Or youHOTEL POOLS The Emperor at Qianmen An outdoor rooftop pool facing the Forbidden City. Cost: RMB 258 (three hours) Opening hours and contact information: Daily