Right now you're facing towards a wall. Turn behind and move little forward and take a right turn. Move forward, now slightly turn right and you can see an arch in front of you. Move towards that arch. Here you will come across a walkway. Walk in the passage till the end. Now you're facing towards a wall. Turn right and move forward till you reach a entrance of a living area. Slightly turn left and move forward, you can find an another walk way in front of you. Walk till the end where you can find a large window in front of you and that is the end point.