The walk to campus takes 10–20 minutes. Out of the hotel driveway go to the left (south) to the main intersection. Then right (west) under the Metro station and through two red lights and then right (north) two blocks to the campus. As you face the Main Gate, the law school is the third building on the left. There is a guard at the gate but you don't need to show anything. Just walk through. It's virtually impossible to get lost in Beijing because unlike many large cities, the streets are virtually all on a NSEW grid. If you take a taxi, the fare to the school gate is 10 yuan or thereabouts.