SUNTEC CONVENTION CTR,Singapore, walking underground, using CityLink Mall from CityHall MRT station

walking from Singapore's CITY HALL MRT STATION to SUNTEC CITY(CONVENTION CENTER) through the subway linked CITY LINK MALL..under ground, without having to face the weather if it drizzles or rain!!. Of course one can get to nearly the end of the city link mall by going to the ESPLANADE STATION (CC3, on the yellow CircleLine)).