| LOCHTAY | A freshwater lake in the Central Highlands of Scotland (4,3) |
| AMHARA | Second-largest ethnic group of Ethiopia after the Oromo, mostly dwelling in the central highlands (6) |
| MARINE | Pertaining to a sea or ocean, but not a freshwater lake |
| MONARCH | Saga set in the Scottish Highlands (------- of the Glen) |
| LOEPOOL | Last April, three people who lived in Poole drowned in the largest freshwater lake in Cornwall (3,4) |
| KELVINS | Glasgow professor's bacon and bridges taken round central highlands (7) |
| ERSE | Of the Celts in the Highlands of Scotland in Jersey |
| BALATON | Large freshwater lake in eastern Hungary (230 sq miles) (7) |
| TANGANYIKA | Longest and second deepest freshwater lake in the world, it is a boundary for Tanzania, the Democratic Republic of the Congo, Burundi and Zambia (10) |
| TAHOE | Lake _, large freshwater lake in the Sierra Nevada of the United States (5) |
| DIRK | Name a dagger, especially used in the Highlands of Scotland (4) |
| CUMARIN | A freshwater crustacean resembling a crayfish (7) |
| ESTUARY | Area where a freshwater river meets a sea (7) |
| MILFOIL | A freshwater aquatic plant with whorls of fine submerged leaves (7) |
| TITICACA | Huge freshwater lake in the Andes, on the border of Bolivia and Peru |
| STRATH | Broad valley in the Highlands of Scotland (6) |
| GOLDENEAGLE | Large predatory bird found in the Highlands of Scotland (6,5) |
| TILAPIA | A freshwater fish native to Africa (7) |
| BAIKAL | The largest freshwater lake in the world by volume (6) |
| SUPERIOR | What is the largest freshwater lake in the world? (8) |
