Natural swimming pools rely on the correct balance of plants and microorganisms to clean and purify the water. They are a safe place for children to play and birds to drink, and are a dramatic example of ecological design, combining the natural and man-made worlds while creating beauty. These pools offer enjoyment not only in the warm months, but during winter, too, when they can be used for ice skating and other activities. Often the focal point of a garden, natural swimming pools blend into their environments, flowing into the surroundings with plants and rocks.They reflect the changing seasons and they enhance the environment naturally. They are easy and less costly to maintain than chemical pools, providing significant savings in water. Chlorine and other common pool chemicals are hazardous to human health and are not used. This book is a necessary resource for anyone interested in having a natural swimming pool and shows how a natural swimming pool system works, as well as the environmental, health, and safety benefits it offers. Drawings, diagrams, and charts cover planning, design, biology, materials, construction, planting, and maintenance. Over 300 beautiful color pictures feature projects that will inspire you to have your own natural water garden where you can swim in harmony with nature at any time. 300 plus colour photographs