One of the greatest things we did here on our property was to put in a garden pond. Our pond has gold fish, frogs, dragonflies, butterflies, and is a place where the birds hang out too.
It is time to redo our pond, so we decided to build another pond in a different location. It will be closer to electricity so we can put in a pump and then it will be both aeriated and beautiful sight and sound.
Here is a link to a video about putting in a pond economically.