The River Foyle is found in which part of the United Kingdom?
Correct answer: Northern Ireland

* Seshati *
Foiled again by the river Foyle gosh darn guessed wrong answer lol 😆

Castra
* Seshati *,
Bad luck, but actually you can tell it's Northern Ireland by the spelling.
Easy for me to say, as I live in the UK ( Shropshire, not Northern Ireland)