Note there is no public transportation at the end of Section 1 (you can call a taxi at the end of Section 1 though). Hence, this instruction covers Maclehose Section 1 and part of the Section 2.
Take the 94 bus from Sai Kung (西貢) to Pak Tam Chung (北潭涌).
Go along the Tai Mong Tsai Road (大網仔路) and you can reach the starting point of the MacLehose Trail.
Get to the Island Reservoir (萬宜水庫) East Dam. You can take a taxi here. (better make a reservation earlier)
If you go on from the east dam, you can each the Long Ke Wan (浪茄灣), the end of the MacLehose Trail Section 1.
Move on to the Section 2 of MacLehose Trail by Sai Wan Shan (西灣山) to Sai Wan Ting (西灣), Take minibux 29R there to return to Sai Kung.
Section 1 map.
Section 2 map.
Maclehose Trail Map.