At the bus terminus of Shau Kei Wan MTR Station, take bus No. 9 to Shek O.  Get off after the Cape D'Aguilar stop (before taking the bus, make sure it will stop at Cape D'Aguilar 鶴咀海岸保護區). Follow Cape D'Aguilar Road into Cape D'Aguilar. Cape D’Aguilar Marine Reserve on the southern tip of the Hong Kong Island is only a 3-4 hour hike which has many interesting things to see along the way, for instance, sea cave with huge waves crushing in and whale skeleton, sceneries which are very different from the North where there are nothing but high rises and the distance is only 30 minutes apart by bus from Central.