From Wikipedia

https://en.wikipedia.org/wiki/Bushcraft

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Bushcraft skills provide for the basic physiological necessities for human life:

• FOOD (through foraging, tracking, hunting, trapping, fishing),

• WATER sourcing and purification,

• SHELTER-building,

• FIRECRAFT.

These may be supplemented with expertise in twine-making, knots and lashings, wood-carving, campcraft, medicine/health, natural navigation, and tool and weapon making.

Bushcraft includes the knowledge to handle certain tools such as bushcraft knives and axes. A bushcrafter can use these tools to create many different types of constructions, from dugout canoes to a-frame shelters. There are various types of shelters to construct or use in the wilderness. The first is a purpose-built shelter like a tent. Another example is an improvised shelter, like using a large tarp or blanket as a tent. Indigenous shelters include a snow cave or bark lean-to. Lastly, natural shelters include caves, underneath a tree, or within thickets