The Avonbeg River () rises on the northern flank of Camenabologue in the Wicklow Mountains and flows southeast into the valley of Glenmalure. It continues southeast through the villages of Greenan and Ballinaclash before joining the Avonmore at the Meeting of the Waters (Cumar an dá Uisce) to form the River Avoca, which in turn discharges into the Irish Sea at Arklow.
The Avonbeg River () originates on the northern slope of Camenabologue in the Wicklow Mountains and flows southeast into Glenmalure Valley. It traverses Greenan and Ballinaclash villages before merging with the Avonmore to form the River Avoca, which ultimately empties into the Irish Sea at Arklow.