The Steam Packet company says tidal conditions in Douglas mean long delays for some passengers today.
The Manxman's Heysham routes are suffering delays of up to two hours today.
Her 3.30pm Douglas to Heysham crossing will now leave at 6pm, while her return trip will set off at 10.30pm instead of 8.30pm.
It's after a weekend of problems for the Manxman because of water depth in the harbour.
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