Dunbulcaun Bay is a coastal estuary in County Galway, Ireland, located off the larger Galway Bay. The picturesque village of Clarinbridge lies at the head of the bay, where the Clarinbridge and Kilcolgan Rivers flow into it, forming part of the Clarinbridge/Kinvarra Bay Shellfish Waters. The bay is a significant area for shellfish cultivation, particularly oysters, with Moran's Oyster Cottage overlooking the waters. For paddlers, the bay presents a tidal environment with a mix of open water and riverine influence. The bay covers an area of approximately 9.83 hectares. The surrounding landscape has historical significance, with evidence of earlier prehistoric communities in the area. Water quality assessments for the bay are managed by Galway County Council and have been categorized as "Not at risk" and "Potentially at risk" in different reports, indicating variable conditions that paddlers may wish to consider. The bay is part of a system of saltmarshes, including areas like Kileenaran and Kinvara West. The overall character is that of a working estuary with a rich maritime and culinary heritage, set against the broader backdrop of the Wild Atlantic Way.