The Steam Packet Company says it's rescheduled one of its sailings this week because of weather.
On Wednesday, strong to gale force winds are expected around the Irish Sea.
As a result, the Manxman's 2.15pm sailing from Heysham to Douglas will now leave Lancashire at 1.30pm.
Passengers are being asked to check in no later than 12.45pm.
More than 270 get Duke of Ed awards
Plans for Lord Street development to be reconsidered
Coastguard teams mount search after beacon activated
Government working with fuel suppliers as demand spikes over war
Film company wants your help during TT
Lieutenant Governor to host special event for charity founder
Two sailings delayed by bad weather
Just weeks to raise £5k to join Dolly Parton's initiative