Forfar Loch was once much larger than it is now. Before it was drained in the 18th century, the loch was nearly 6 metres higher and stretched eastwards nearly as far as the East Port. Castle Street was once a ford across the loch.
The environment of the loch is now preserved for recreation and wildlife within Forfar Loch Country Park. There is a ranger base where you can learn more about the environment.
You can walk around Forfar Loch in either direction from Forfar Leisure Centre. The circuit offers level, easy walking. During very wet spells, the loch may flood the path and waterproof footwear will be required.