The Maigue Estuary is a transitional saltwater body in County Limerick, Ireland, flowing into the Shannon Estuary. It is a tidal feature with no locks, historically used for navigation up to Adare. The tidal nature is confirmed by water level data from stations at Ferry Bridge Maigue and Adare Quay, indicating a significant tidal range and current. Key access points include Ferrybridge, located on the N69 coast road between Clarina and Kildimo, which historically featured an opening bridge, and Adare Quay. The upper reach of the estuary below Adare historically contained several head weirs for salmon, though their current status for navigation is not detailed. The harbour for Adare was historically at the end of a short canal near the ruins of the Trinitarian Abbey, which may present another potential access or point of interest. The estuary's inter-tidal area has been surveyed, and it is subject to the wider tidal influences of the Shannon Estuary. Water quality assessments have noted that the Maigue Estuary has exceeded relevant winter phosphorus and salinity-related standards, which paddlers may wish to consider. The area from Ferrybridge to Ringmoylan along The Bank Walk has been examined for potential as a birdwatching route, suggesting this stretch may offer wildlife viewing opportunities from the water. Paddlers must plan trips around the tidal cycle, anticipating strong currents, and should be aware of potential submerged historical structures like weirs.