Dhaka, March 11 -- Holidaymakers arriving at Singapore Changi Airport from mid-April will be met by the sight of the world's largest indoor waterfall as the airport prepares to unveil its GBP 951 (USD 1238) million Jewel development.

Long in the making, the vast extension built over a former car park is to open on April 17 and will feature an indoor "forest valley" with 3,000 trees, a 40-metre high "rain vortex" and more than 280 shops and restaurants.

Jewel at Changi, an airport regularly ranked as the best in the world, will be 10 storeys high, cover 137,000 square metres and feature a "canopy park" with walking trails and a playground.

It will be connected to terminals one, two and three, which cover both British Airways and Singapore...