The Steam Packet is exploring the feasibility of the Ben-my-Chree sailing to Northern Ireland.
It was announced at the Government Conference last month that the company was exploring the potential of improved services to the island of Ireland.
As part of this, the Ben is off to Larne today for what the company called a “trial sailing”.
It also cautioned that no decision has been made about adding the route or any other changes.
A spokesperson said: “As part of the Isle of Man Steam Packet Company’s commitment to enhancing connectivity and providing more travel options for residents and visitors we are exploring all options.
“This week Ben-my-Chree will undertake a trial sailing to Larne. We would like to make it clear at this stage that this is only a trial and that no final decision has been made regarding the addition of the route to our schedule, or any other alterations to our schedules.
“This test will help us assess operational viability, port suitability, and sustainability before determining any further steps.”