Mullinhassig Waterfall — locally known as Poulanassig, or "Poll an Easaigh" in Irish — is set within Mullinhassig Wood, a Coillte-managed property in the townland of Aghavrin, roughly 4 km north-west of Coachford in County Cork. The waterfall lies about 0.

75 km west of the wood's entrance and can be viewed from the water's edge or from a path running above it.

The surrounding woodland combines areas of mature native trees with more recent coniferous regeneration, tucked into a wooded ravine on the sloping hills north-west of Cork city.

The site is publicly accessible and draws both local visitors and tourists exploring the area.