How to get there:
To reach there, you can go to Kowloon MTR and exit through Exit D1. Exit D1 is actually the Airport Express Counters. It is the place where people do the City Check In before they board the train to the airport.
The West Kowloon Waterfront Promenade is a 10-minute walk from Kowloon MTR station, on the Tung Chung and Airport Express lines. Exit the station into Elements mall and head towards the ice rink, where there is a door out onto Austin Road. Turn right and keep walking until you reach a pedestrian bridge; cross it and reach the entrance to the promenade.