| CAIRNS | Australian city, a gateway to the Great Barrier Reef |
| FRESNO | Central California city, a gateway to the Sierra Nevada |
| HAWSES | Ship's parts stuck, to begin with, in a gateway to the Dales (6) |
| CORALSEA | Part of the Pacific Ocean, home to the Great Barrier Reef (5,3) |
| CONWY | Containing Britain's smallest house and forming a gateway to Snowdonia, a market town on the north coast of Wales guarded by a medieval castle (5) |
| QUEENSLAND | The Great Barrier Reef lies off the coast of this Australian state |
| MACKAY | The Great Barrier Reef Arena is in this Australian city. (6) |
| ABUJA | Zuma Rock sits as a gateway to this Nigerian city which replaced Lagos as the nation's capital |
| CORAL | Marine animal that forms the basis of the Great Barrier Reef |
| DEADCALM | 1989 Australian thriller film starring Sam Neill, filmed around the Great Barrier Reef |
| HEART | --- Reef, box B coral formation in the Great Barrier Reef (5) |
| MARBLEARCH | Landmark at the north-east corner of Hyde Park, first designed by John Nash as a gateway to Buckingham Palace (6,4) |
| MARBLE | Structure designed by John Nash originally erected on The Mall, London, as a gateway to Buckingham Palace (6,4) |
| ARCH | Structure designed by John Nash originally erected on The Mall, London, as a gateway to Buckingham Palace (6,4) |
| CHARTS | Nautical maps such as those prepared by Captain James Cook that were later used by Sir David Attenborough in the 19505 when he sailed the Great Barrier Reef (6) |
| COOK | British explorer James who charted New Zealand and the Great Barrier Reef. |
| SCUBA | See the Great Barrier Reef, perhaps |
| ERR | Go wrong in the Great Barrier Reef (3) |
| CORALCORRAL | Pen enclosing the Great Barrier Reef? |
| TEANAU | Town regarded as a gateway to Fiordland National Park and Milford Sound (2,4) |
