The Gwestion is one of the river Moy’s main tributaries and is fine salmon, seatrout,and brown trout river in its own right. It often gets overlooked because most visitors concentrate on the Moy, but this can be a mistake because when conditions are suitable the fishing on the Gwestion can be good. This is a challenging river to fish, but if you like a lot of river to yourself and enjoy peace and quiet then this lovely little river is ideal.