Here is a fun Campers or Survival project. Collect some kindling and leaves, dried tiny branches and fire starting materials. Take a round empty bottle like Pom Drinks, you can use it as a magnifying glass to pinpoint a ray of sunlight onto your collected leaves and other light fire starting materials to start a flame. You could even use a plastic bag filled with water. Just twist the top until it is in a ball shape.
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This tip came from a friend, a woodsman and war reenactor. Works amazingly well, but takes some prep. You should prepare this fire starter kit before you have to rely upon it off the beaten track.
