By chance I noticed a portacabin in Kilrane with (current) Stena Line signage affixed to the front (where there is also a window and a door).
Wondering if this is a base/ mess for a small number of crew from time to time/in emergency. Or perhaps it is a local sports base just sponsored by Stena Line.
(Kilrane is the next village along the main road upon leaving Rosslare Harbour and these days the two settlements essentially merge into one another)
Going towards the port the portacabin is located just after the Kilrane Inn on the same side.