How to Find Water When You're Stranded.
Solar Water Still
Step 1: Dig a hole in the sand near a tree, deep enough so you reach damp sand.
Step 2: Put a container in the middle of the hole.
Step 3: Fill the gaps around the container with wet leaves.
Step 4: Place the sheet of plastic over the hole and use rocks to hold the plastic down. Place a small rock in the middle of the plastic over the container.