This one of the hardest part of her hole house but with this handy map it can be easy but i would lock the butler in the frezer and open the door frist.
If you see a button press the action key to push it.
If you go past the fountain right next to it is an opening in the hedge. This is the entrance to her hedge maze. In the maze there is a tunnel that leads to a room with a switch. This switch opens a door in Lara's house. If you can make it out of the maze fast enough you will get in the door. If you don't you'll have to go back and try again.
Once you get in you'll have to light a flare to see. Have you ever wondered what Lara does with everything she finds? Well here's the answer to your question.
To get back out again, if the door is shut push the button on the wall.
It looks impossible to get over those walls. Right? Wrong. There is a way to get over them. Go to the next to end of the assault course where there is a climbable wall and then the zip line. Climb it to the top and walk forward to the edge as if you were going to grab it. Step right all the way until you come to the wooden wall. Turn so that you are angled at the main wall. Jump, then while you're still in the air, look and press the forward button. You will end up on the wooden wall you were next to. Then you can jump to the wall. From there you can get to the main gate where you can safety drop off and explore the country. You could also go the opposite way down the wall and get on the roof of the swimming pool. You can also get a good look at the maze. However, once you get out by the main gate you can't get back in.
You can get on Lara's Roof!!!!!!!! First you have to get on Lara's Walls, (explained in trick above.) then go onto her swimming pool roof. go to the far corner where there is sort of a small patch of brick. Turn so that you are facing the maze at a 45 ° degree angle. Then do the same thing to get on her roof. Place her so that her foot is inside of the wall and press jump a few times. Then you can get on her balcony too.