Go straight down the walkway and stop at the end, just after the railing.
Turn about 45 degress to the right. Walk through the doorway. Turn 45 degrees to the left. Walk straight down the hallway along the banister. Stop at the end of the hall between the two doors.
Veer to the right slightly. Walk into a hallway, continue going straight, past the staircase. When you get to a wooden doorway, stop there, and wait.