Wolf TrackRun ahead to where the wolf tracks come from. You will soon come to a part with slits in the walls left and right. These are Dart Shooters. Just continue running along, without stopping and you should make it past just fine. If you want to make sure not to get hit, make your way over to the left wall, where the floor is a little sloped, to get out of the shooting path of the two shooters on the right and jump over the two blowpipes on the left when they come up. Follow the bend around to the right. Here you can see the footprints coming down from the left.
Lower Part of CaveWall Lever on the right. Use the lever to open the door. Enter the next chamber and shoot a bat. [Orientation] Run into the left corner and climb up onto the next level. Follow the path till you come to a part of the cave with two bridges. Stay up here but draw your weapons to shoot the two wolves running around below. Follow the walkway around to the right. Cross the first bridge. Run around the pillar and cross the second bridge. On the other side, turn left and enter the next room.
Bear and WolvesAdvance towards the gap on the right. In the chamber underneath is a bear hiding. (Console gamers might want to make use of the save crystal on the opposite side, before going for the goodies.)
Timed DoorRun down and collect the Small Medi Pack lying underneath the stairs.
The Big GateRun up the stairs. Follow them to the right. Beware of the Dart Shooters. Shoot the wolf in the chamber at the top, on the left. Step onto the broken platform and drop through the crumbling floor. Turn right and run through the doorway. At the end, turn left and make a running jump over the gap. Turn left again. Run towards the medi pack. Draw weapons and shoot the wolf. Collect the Large Medi Pack. Use the lever in the chamber the wolf came out of. Return outside and go towards the first window on the right. Slide down the hill and run through the open gate.
Secret 1 (Additional Hints)
Text Guide(0) Find the sloped block in the corner. The entrance is above, to the left. (What you need to do is, slide down the slope and from there jump towards the entrance, to grab the ledge.)
(1b) OR: Stand behind the sloped block, a.k.a. behind the highest ledge. Jump up, grab the ledge and pull up to slide down.
(1c) OR: Run towards the slope aiming towards the middle part and jump onto it facing slightly left to land on it facing downwards.
Video GuideIn my I have used the first method, as it is the more fluent one.
OrientationTo your right is a wooden gate. There is no getting through here though. Behind it you see a trench lined with Dart Shooters and at the end the gate to Vilcabamba, our target. We need to get around the gate. If you follow this guide closely, you need not worry about the darts.
Video GuideIn my I linger here to show you the gate.
Bats (encountered in Peru and Greece) are fairly easy to kill. They only take a single hit with the pistols. Run around with your guns drawn unless you are climbing, and you should be able to dispose of them quickly. Once they attach to Lara's head, hop back or perform a role to get some distance between you and them.
To read more on bats, please visit WikiRaider.
Wolves (encountered throughout Peru) are nasty beast if they come too close and you get trapped in a corner. Before you get too close, make sure you can not shoot them from atop a rock where they can not reach you. Keep enough distance and while fighting you might want to perform backflips as to not let them get too close. Keep shooting all the while. Often wolves will appear in packs of two or three.
To read more on wolves, please visit WikiRaider.