Which route should I take to do hiking 3-4 hours to get to the peak of Huashan Mountain?

If you only have 3-4 hours, you are suggested to take West Peak Cable Car up to the mountain, touring around South Peak, Nantianmen, Changkong Plank Road, East Peak, Canlongling. And then back down by cable car from North Peak. If you want to an English tour guide, you can ask help for TravelChinaGuide.com. As I know, they have professional guides and hike with you. If interested, their contact information is traveltravelchinaguide.com.