Bushcraft is the art of living in a natural environment, within and in harmony with nature. It is distinct from (though it shares a lot with) survival, where the mindset is only about getting out at the other end as safely as possible. Bushcraft will teach you skills not just to survive, but to thrive in comfort, and rely not on your gear, but yourself. This is a list of the skills you will need.
Finding and Purifying Water
Water is almost certainly the very first thing to worry about when learning bushcraft. The rule of three gives you a maximum of three days without water, which goes down to one in very hot, arid conditions. Remember that even once you have found water, in most cases it will then need at least to be filtered and possibly distilled or boiled before it is safe to drink.