The Sixmilewater River is a highly productive river that enters Lough Neagh at Antrim Town. 

The river holds a good head of wild Brown Trout, later in the season it has runs of Salmon and Dollaghan, a Trout which behaves in a similar way to a Sea Trout but instead of going to sea it runs to Lough Neagh which is the largest freshwater lake in the UK, covering a mammoth 153 sq miles (400 sq km). The Dollaghan grow in many ways similar to Salmon up to 2lb or 3lb every year while in the Lough due to the feeding there, this makes them one of the biggest wild Brown trout with many specimens being caught most seasons.