Passport-Belfast to Cairnryan

[petop]

Years ago i went from Larne to Stranraer on the ferry when i was in Northern Ireland. But now i hear that ferry has now stopped. But now its been replaced with the B to C route, do you need a passport to get onto the UK mainland?
thanks in advance

[Deerfoot]

Nope.

[grumpyscot]

N. Ireland is part of the UK - as is Scotland

[Turbodiesel1690]

grumpyscot said:

N. Ireland is part of the UK - as is Scotland

And will always be

[TwigtheWonderkid]

You don't need a passport for travel between the Republic of Ireland and the UK either.