The Pollanassa, also known as Mullinavat Falls, is a river run in County Kilkenny graded at 2-3. The run is characterized by small drops with continuous rapids, sharp blind bends, and tight corridors with frequent overhanging trees. The stretch is relatively short, with the take-out at a bridge approximately 1 kilometre from the put-in, making it feasible as a single-car trip with a short walk back along the bank.

The put-in is near the falls, which serve as a public swimming area in summer and are accessible without access issues. The take-out is at the bridge passed during the approach drive — the only bridge encountered on the run. A small eddy on river left just before the bridge provides a convenient exit point. Most of the surrounding bank is farmland, and paddlers are asked to respect the land by not blocking gates and parking as tightly as possible.

Hazards on this run are significant and require careful attention. Fallen trees are a persistent concern throughout the stretch, and wires cross the river at cattle crossings, with barbed wire present along the bank edges. The section below the falls down to the bridge is particularly problematic, with numerous fallen trees and overhanging branches that become more dangerous at higher water levels. Blind bends are frequent, and while some have small eddies on the outside that allow downstream inspection, others do not. Scouting is difficult — the left bank is largely ditch and brambles, while the right bank offers access through farmland. Given the tight eddies and continuous nature of the run, a small group of around three paddlers is recommended.

Water levels can rise dramatically after heavy rainfall, with evidence of trees wrapped around other trees several feet above normal water level having been observed. The falls themselves serve as the most practical gauge for assessing conditions, and looking upstream from the take-out bridge also provides a useful indication of flow. The section below the falls is noted as carrying hazards even at low to medium water, so caution is warranted across all levels. The run has a technical character, with some moves requiring an immediate turn after a shoot to avoid rocks or downed timber.