The Afon Ceiriog is a whitewater river located in north Wales, joining the River Dee near Chirk as a tributary. It is described as a grade 2-3 run in its main paddling section, with continuous action from the moment a paddler launches. The river is characterized by a steady succession of waves and small stoppers that maintain momentum throughout the run, making it a genuinely engaging paddle rather than one with isolated highlights separated by flat water.

In its higher reaches, the Ceiriog is considered a grade 3 whitewater river, offering more demanding conditions for paddlers seeking a greater challenge. The river flows through wooded terrain, consistent with the heavily forested character of the surrounding valley. At its confluence with the River Dee, the Ceiriog enters from the right and is described as a fairly small tributary at summer levels, which suggests that water volume — and therefore difficulty and paddlability — is significantly affected by seasonal rainfall and runoff. Paddlers should factor in that summer levels may reduce the river to a modest flow, while higher water in wetter months will increase both volume and grade.

The Ceiriog is noted in the context of the River Dee's broader whitewater network, alongside tributaries such as the Alwen near Corwen, indicating it is a recognized destination within the Welsh paddling circuit. The surrounding landscape includes woodland, and the river's character as a continuous, wave-filled run makes it well suited to paddlers looking for an active day on the water rather than a scenic touring experience.

Given the river's relatively small size at lower flows, it is likely best paddled after periods of rainfall when water levels are sufficient to bring the rapids to life. Paddlers planning a trip should monitor levels accordingly, as the river's enjoyability is closely tied to adequate water volume.