Start a new game and skip the opening cutscenes. Once you have control of Jane (you character) follow the prompts to learn the movement controls and pick up the pickaxe. Now turn 180° and click on the blue arrow to move towards the next scene. Click on the next blue arrow to exit the cave and as you do so there will be a cave in. Follow the prompts to clear the rocks using the pickaxe and click on the final blue arrow to move outside.
Once outside click on your journal which is partially buried in the sand in front of the helicopter and also pick up the key hidden beneath it then use the key on the locked chest.
Once you have the chest opened place the Bandages, Tape and the Bottle inside the Medkit box and click it once more to pick it up. After using the Medkit on Hawk you will then be asked to find Water.
Click on the Helicopter and you will enter a typical hidden object game that requires you to locate the following objects: Bandana (blue, top left corner), Boot (glack, middle), Canteen (Green, beneath the purple and red ropes), Metal Ladder (Silver, through the far door), Utility Vest (khaki, top right), Binoculars (black, just below utility Vest), Camel (photograph to the left of the Binoculars), Hat (green, to the left of the purple and red ropes), Radio (black, just below the Hat) and a Prybar (black, far left with a starfish on it).
Once you've found all the items without using the hint button the achievement will unlock.