There are several hiking trails on Lantau Island. The Lantau trail is 70 km and you can do it in sections. I only did a section, but if I had time I would like to have done it all. One hike we did was on Discovery Bay to Mui Wo. The trail is on paved cement, and you pass some "homes" of the people. You feel like you are walking through their houses because they are practically on the trail. I was told that we might see oxen, but we did not. We did see signs that they had been there recently. We got to Mui Wo and had lunch at China Bear, an outside cafe. There is always a McDonalds if nothing else. We took around the village there. There are small stores and it looks like the majority of old folk sit and have Mahjong parties.
The other hike we did was from Ngong Ping, starting at the Po Ling Monastery where the world's largest outside Buddha sits. The bus drops off right there. We walked by the youth hostel, which we checked out. It was very clean but far away from everything. You have to pay extra if you want to use it during the day. The Lantau trails goes right by it. We hiked up to Lantau Peak. It was steps most of the way and it was steep. Before the fog moved in, we were able to see the Buddha from the trail. I am sure you would be able to see it from the Lantau Peak, which is the highest on Lantau. You can continue on and take a bus back, but we just hiked down the way we came so that we could hike up to the Buddha.