Natural swimming pond, love the planted filter sides, reeds and water lilies in mine :) with full length steps entering on narrow shallow end, jumping platform narrow deep end. Sheep/goat or horse panel fence around mine to see forested field.
These 9 permaculture principles are based on the concept of mimicking Nature. Suggestions and examples are given, so you can implement them in your own garden or farm. Finally, a permaculture article that doesn't read like a religion.