Hanzhong (汉中; Hànzhōng) is a city in Shaanxi Province.
From Xianyang International Airport
There are buses from Xianyang International Airport to Hanzhong leaving at 10:00, 12:30, 14:30, and 17:00.
From Xi'an South Bus Station
Numbers of buses to and from Hanzhong dropped substantially since the express trains was started a few year ago. It takes about 4 hours by bus.
From Xi'an North Railway Station
There are frequent express trains to and from Hanzhong though the day. The journey is generally about 1.5 hours.
It take also about 3.5-4 hours from Xi'an to Hanzhong by car. The express way to Hanzhong has very strict speed limits (60-100km/hr). There are many tunnels along the way too (longest one more than 6km in length).
Hanzhong is famous throughout China for its 汉中热米皮 which are Hot Rice Noodles, they are steamed thick rice noodles that are served with a hot pepper sause. Hanzhong is also famous for its 菜豆腐 Cai4Dou4Fu3 which is a type of thicker tofu that is eaten with a spicy garnish on the side. These are eaten any time of the day, but typically as breakfast for the locals.
Worth trying are "Rou Jia Muo" which are essentially Chinese hamburgers and "Niu Rou Mian," wheat noodles with beef. Both items are readily available from street vendors.
Culinarily, Hanzhong is part of Sichuan and as such the food in the city is generally spicy.