Believe it or not, construction has begun on a luxury 5-star resort “being built inside a 100-meter deep, water-filled abandoned quarry in China at the base of the Tianmenshan Mountain.” It’s being designed by British-based firm Atkins, will boast 380-rooms over 19-stories (2 underwater) and cost £345-million. Continue reading for more pictures and information.

The rest of the InterContinental Shimao hotel will be built into the mountainous landscape and guests will be able to do watersports on the lake and use the nearby cliffs for rock-climbing and bungee jumping. It is expected to take around three years to build and guests could be staying in the resort by 2015 – with rooms likely to cost around £200 a night.

The two underwater floors will have an aquarium with glass walls that look out onto an underwater restaurant and guest rooms. A swimming pool and a sports center will also be built inside the hotel as well as several restaurants, a banqueting hall and conference rooms for business meetings.