Cayo Bonito
| Name | Cayo Bonito |
| Type | Steamer |
| GRT | 3,427 tons |
| Country |  British |
| Built | 1901 |
| Builder | J. Readhead & Sons, So. Shields |
| Operator | Brys & Gylsen, Ltd., London |
| History |
U-boat attacks on Steamer Cayo Bonito
| Date | U-boat | Loss type | Position | Location | Route | Cargo | Casualties | |
| 1 | 11 Oct 1917 | UC 35 (Hans Paul Korsch) | Sunk | 4 miles ENE of Savona, Gulf of Genoa | 44° 14'N, 8° 30'E | Swansea - Livorno | patent fuel | 6 |
Position of attack on Cayo Bonito
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