| Clue | Source | Date |
|---|---|---|
| In the main, these are disastrous losses (10) | ||
| In the main, they're disasters (10) | ||
| Locations of some dives | New York Times | 22 Jul 2021 |
| Sea disasters, and a hint to what's literally hidden in 18-, 23-, 38- and 50-Across | LA Times Daily | 30 Apr 2019 |
| Sea disasters, and a hint to what's literally hidden in 18-, 23-, 38- and 50-Across | The Washington Post | 30 Apr 2019 |
| Sea disasters, and a hint to what's literally hidden in 18-, 23-, 38- and 50-Across | ||
| Some contain treasure | ||
| Hatteras occurrences |