Garden Pond Ideas : When creating a water garden you will need to choose from either a soft pond liner or a hard pond liner. If you are using a soft liner, your water garden or fish pond can take any shape you like such as square, round, oblong or just about anything else that you can think of.
Rectangles are the easiest to install as they are easier to dig a hole for and when you use soft liners, you only have to make a few folds in the corners. Preformed ponds such as kidney shapes are even easier to install. The free formed design, where you define the shape by digging and then lining with a soft pond liner, are more difficult to install yourself.