P&O Ferries of the UK has carried more lorries and trailers in the third quarter between Scotland and Northern Ireland than at any point in the last six years.
The company said it transported 53,305 vehicles to 30 September, up 3.3% from the same three months of 2016.
Neal Mernock, P&O's sector director for the Irish Sea, said: ""Our port at Larne is fast becoming the gateway of choice for anyone exporting to or from Ireland.
