Survival structures are basic shelters designed to protect individuals from environmental elements during emergencies or outdoor activities. These structures can be made from natural materials like branches, leaves, and mud, or from man-made items such as tarps and tents. Their primary purpose is to provide safety, warmth, and a place to rest. Common types of survival structures include the lean-to, debris hut, and A-frame. Each design offers different benefits depending on the available resources and weather conditions. Learning to build these structures is essential for outdoor enthusiasts and those preparing for potential survival situations.