Turn left from the place you are standing and keep moving forward. On the left side you will find an open door. Now enter into the open door and keep moving forward. On the left side you will find stair case. Now slightly turn right and go straight. On the right side you will find narrow opening. Now enter into the narrow opening and turn left. You will find an open door. Now go straight and enter into the narrow opening. Now turn right and go a step forward. That will be your final destination.