The water town resort has fully opened all of its attractions to visitors since July 25.
The beginning of summer vacation also contributed to the surge in searches for destinations, says Lan Xiangye, a senior official with Qunar's big data research institute.
Many people outside of Beijing are also searching for destinations in the capital.
The Summer Palace, the Temple of Heaven and the Mutianyu section of the Great Wall are among the most popular spots, Trip.com reports.
Many bus operations connecting Beijing and Hebei are back in business, and the capital city is taking steps to reopen long-distance tourism bus chartering service.
