An 18-storey hotel with two floors above ground and the rest below, including two floors under water, is due to open in Shanghai.
The 337 rooms and suites all boast balconies where guests can view waterfalls from the surrounding cliffs. The hotel also offers a grand ballroom and four meeting rooms.
The InterContinental Shanghai Wonderland, developed by the Shimao Group and managed by IHG, is expected to open its doors in the fourth quarter of this year.
InterContinental Shanghai Wonderland is located at Sheshan Mountain Range, 30 kilometres from Hongqiao Airport and close to attractions like Sheshan National Park and Chenshan Botanic Gardens.
The property has been set inside a former quarry in southwest Shanghai. Its planners say it is a contrast to the traditional architectural concept of building high-rises, truly reflecting the natural landscape of the quarry.
IHG said, "The hotel reaches down to 88 metres below ground to reshape the relationship between city and nature, turning an abandoned quarry into a treasure of wonder and beauty."
IHG said InterContinental Shanghai Wonderland would become "a must-visit destination itself" to welcome its growing numbers of visitors to Shanghai.