A Safety & Security declaration will be required for units arriving into GB from the EU starting from 00:00 hours on 31 January 2025.
Organise your Stena Line North Sea route S&S GB ENS here
Organise all other route S&S GB ENS with CustomsLink

From 1 October 2021 EU, EEA and Swiss citizens can only travel to the UK using a valid passport

Anyone travelling to the UK on an invalid travel document is liable to be refused entry at the border.