how to go to central station from Hotel rainbow, saigon street?

from the hotel, you can take along the Saigon Street walk west to Nathan Road and then walk southward along the road for about 4 blocks to Jordan. there you can take MTR Tsuen Wan Line to Admiralty, and hten take bus 629.
actually, there is a direct bus. you can walk east along the Saigon Street and turn left on to Chi Wo Street. Walk northward to the West Kowloon Corridor overpass, walk across the steet under the overpass, you will find a bus stop. there take a bus No. 171 for 3 stops to Aberdeen Tunnel, and walk the Ocean park.
these are the same route you go back to your hotel.