| SHANNON | Longest river in the Republic of Ireland |
| DERG | What is the largest of the lakes on the Shannon River in the Republic of Ireland, dividing Galway fr |
| WYE | The fifth-longest river in the UK, forming part of the border between England and Wales for much of its length |
| YANGTZE | Third-longest river in the world, and the longest of Eurasia, also known as the Chang Jiang (7) |
| VLTAVA | The longest river in the Czech Republic, a tributary of the Elbe (6) |
| BLARNEY | ___ stone, part of a wall in a castle in the Republic of Ireland, said to endow whoever kisses it with the 'gift of the gab' (7) |
| OUST | The River Great ... is one of the longest rivers in the UK (4) |
| KILKENNY | Market town in the Republic of Ireland that was the capital of the ancient kingdom of Ossory |
| CORK | Port in the Republic of Ireland at the mouth of the River Lee (4) |
| DROGHEDA | Port in the Republic of Ireland near the mouth of the River Boyne |
| ERIE | The shallowest of the Great Lakes in the Republic of Ireland |
| EBRO | The second-longest river in the Iberian Peninsula after the Tagus (4) |
| NILE | Major north African river considered the longest river in the world (4) |
| SEVERN | Which is the longest river in the UK? (6) |
| EUPHRATES | The longest river in the Middle East (9) |
| AMAZON | Which is the longest river in the Americas (6) |
| MISSOURI | The longest river in the United States (8) |
| TAGUS | The longest river in the Iberian peninsula (5) |
| ARAS | One of the longest rivers in the Caucasus |
| SLANECASTLE | Fortification in the Republic of Ireland, seat of the Conyngham family since the 1780s (5,6) |
