from haven street causeway bay to Riverside Hotel Sha tin. what mode of transport should I take?

The easiest way is to take a public bus no. 170. You need to walk along Leighton Road from Haven street until you find Lee Theatre Plaza and then turn right to walk along Perceval Street to find Lee Theatre Bus Station. There you can take no. 170 bus to get off at Greenfield Court. Then you walk along Sha Tin Wai Road until you find Tai Chung Kiu Road. Turn right and walk along the street to find your hotel. The whole journey takes around 1 hour and 20 minutes if there is no traffic jam. The bus fare is 16 HKD.