Crossings affected between Sunday and Tuesday
The Steam Packet has been forced to amend a number of sailing times due to silting under the linkspan pontoon at the new Liverpool terminal.
The changes are the result of arrival and departure times coinciding with low water, which causes alignment issues with the vessel's stern ramp, preventing safe loading and unloading.
The affected sailings are on the 27, 28 and 29 April.
Passengers affected are being contacted by text or email to inform them of any changes to plans.
The Steam Packet says it's working with the Department of Infrastructure and Peel Ports to ensure a robust programme of dredging is conducted to avoid future issues.
Where changes mean passengers are unable to travel on their original bookings, full refunds or amendments will be made free of charge.
The company says it apologises for any inconvenience caused by the situation.
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