Top Countries with the Longest Total Duration for Underwater World from Review Channels
This list represents countries of YouTube review channels based on the longest total video duration across all videos for Underwater World. This only includes channels that have created review videos. A channel associated with a country will have its numbers added to their country's total. Numbers are retrieved via the YouTube API and updated daily.
| Country | Duration | Channels | Subscribers | Views | Videos | |
|---|---|---|---|---|---|---|
| 1. |  Spain | 12:57 | 1 | 264,000 | 1,661 | 1 |
| 2. |  United States | 4:08 | 1 | 501,000 | 1,521 | 1 |
| 3. |  Russian Federation | 3:34 | 1 | 65,500 | 366 | 1 |
| 4. |  Thailand | 1:53 | 1 | 0 | 871 | 2 |
| 5. |  Ukraine | 0:36 | 1 | 3,320 | 20 | 1 |