| Answer | Crossword Clue |
|---|---|
| OPAL | The Olympic Australis is the largest one in the world |
| OPAL | The Olympic Australis is the world's largest discovered one |
| OPAL | Olympic Australis is the world's largest one |
| OPAL | The 17,000-carat Olympic Australis is the largest ever found |
| TIDALRANGE | The Bay of Fundy has the largest one in the world |
| STONESKIPPER | Russell Byars is one: He set the Guinness World Record of 51 times from the shore of the Allegheny River on 7-19-2007 |
