As seen on bbc ones high street dreamsif youre not scrambling around building your den with muddy knees and a great sense of adventure about you then youre doing it wrong have fun outside and learn new skills as you have all you need to build a den just about anywhere in the world start with the basics a simple shelter to see you through the night but for those of you feeling a little more adventurous there is all you need to build a more complex design that bear grylls would be