slope, then slide nearly to the end of the second slope, jump and grab the horizontal pole ahead (as indicated in this screenshot ). If you miss and Lara lives, you can climb back up via the carved block and wooden ledge ( screenshot ), cross the broken bridge, climb up and try again. Once you master the slopes and reach the horizontal poles, swing from the first pole to the second, then to the wooden ledge ahead. Pull up and jump to the next wooden ledge. Enter the tunnel and cross CHECKPOINT 19 . BACK THROUGH THE CAVES TOWARD THE START: Ahead, between the rocks, is the tunnel where you slid down into the valley earlier. You can't reach it now. So head to the left and follow the tunnel through various twists and turns to an opening on the right. Pass it and continue up the slope and around to the right to a higher opening and CHECKPOINT 20 . Slide down the ramp and jump across the deep pit to grab the handhold on the wall ahead. Jump back to grab another handhold below the slope. Drop down once and traverse around the corner to the right. Jump back to land on the wooden ledge. (On the far side of the pit, you can see the ledge where you got the large medipack and killed 2 bats earlier.) Go around the corner to CHECKPOINT 21 , on the ledge overlooking the wooden ramps. (This is the same