To promote the use of rock caverns, the Government regularly organises exhibitions on cavern development. Pictured is a cavern data centre model built with blocks.

To promote the use of rock caverns, the Government regularly organises exhibitions on cavern development. Pictured is a cavern data centre model built with blocks.

To promote the use of rock caverns, the Government regularly organises exhibitions on cavern development. Pictured is a cavern data centre model built with blocks.

To promote the use of rock caverns, the Government regularly organises exhibitions on cavern development. Pictured is a cavern data centre model built with blocks.