Mullinhassig Wood is a Coillte-owned property, straddling the townlands of Aghavrin and Shanavagha, 4 km (2.5 mi) north-west of Coachford village in County Cork, Ireland.

Poulanassig Waterfall is located within the wood, 0.75 km (0.47 mi) west of the entrance, and can be viewed from the water's edge, or from a path above.

[8] The Ordnance Survey (OS) name book (c. 1840) describes a small pond of water as 2 chains (0.04 km (0.025 mi)) north of Poulanassig in the River Clashgorrave, and at the mouth of which is (Mullinhassig) waterfall of about 18 feet.

The OS name book also describes a pond of water in the River Clashagorrave approximately 10 chains (0.2 km (0.12 mi)) south of Poulanassig, and, at its mouth, 12 foot "Poulachourane Waterfall".

The Irish Tourist Association survey of 1944 advises that (Poulanassig) waterfall is a thirty foot cascade of the Glashnagarriff River, and a "popular venue with visitors", and gives some local folklore.

[9] Mullinhassig Wood, a forested Coillte amenity of approximately 8 hectares (20 acres), contains Douglas fir, oak, Sitka spruce and Japanese larch.