| Country | United Kingdom (GB) |
| UN/LOCODE | CYD |
| Name | Clynderwen |
| Name Without Diacritics | Clynderwen |
| Region | PEM |
| Function Code | 1------- |
| Function | Port |
| Status Code | RL (Recognised Location) |
| Date | 901 |
| Timezone | Europe/London |
| Location (UN Format) | 5150N 00442W |
| Latitude Longitude | 51.8707, -4.7095 |