Regardless of whether you live in a city centre, a suburb or out in the country a garden pond is relatively easy to design and create.  A pond will attract a little of the wildlife back to your garden in a very short time as well as enhancing your enjoyment of the garden itself.  If you've ever camped close to a river you will know that the tranquil sound of running water is very relaxing and sitting watching the fish, birds, frogs, toads, newts, dragonflies etc. is all very therapeutic.

It goes without saying that if you have small children or expect to be visited by them regularly it is extremely important that you take their safety into consideration when designing the pond.  Remember that it is possible to drown in just a couple of inches of water.  It kind of defeats the object a little and lessens the impact of a pond or water feature but safety has to come first and walling off the pond area with a low decorative wall is likely the best solution.