Mountshannon is a village on the Clare shoreline of Lough Derg, situated on the R352 road in East Clare.

Its harbour serves as the primary access point for boat trips to Inis Cealtra (Holy Island), one of Ireland's most significant early monastic settlements, located 2. 3 km offshore.

Paddlers departing the harbour turn south along the lake bank, rounding Ryne Point before crossing to Holy Island's western pier. Beyond water access, the village is a base for woodland walking, cycling, fishing, and swimming on Lough Derg.

The surrounding area includes Woodpark Forest Park and a network of small lanes, along with local historical features such as ringforts and a wedge tomb. Restaurants, pubs, and on-street parking are available in the village.