There will be no services between 10:00am and 2:00pm while unions hold stop-work meetings on a proposed enterprise bargaining agreement.
Chartered ferries and shuttles to Taronga Zoo and Manly are the only services that will continue.
Workers will also stop selling tickets or wearing uniforms from 5:00pm until the end of the long weekend, allowing commuters taking in Vivid, to ride for free.
There will be no services between 10:00am and 2:00pm while unions hold stop-work meetings on a proposed enterprise bargaining agreement.
Chartered ferries and shuttles to Taronga Zoo and Manly are the only services that will continue.
Workers will also stop selling tickets or wearing uniforms from 5:00pm until the end of the long weekend, allowing commuters taking in Vivid, to ride for free.
There is also a ban on staff overtime.
Paul Garrett from the Maritime Union said negotiators were frustrated at not being able to reach a resolution.
"Six months of negotiations is enough," he said.
"Members are being fair and being prepared to deliver millions of dollars of savings to Harbour City Ferries, that hasn't been accepted.
"Enough's enough, all they want is a bit of job security and a chance to get on with their job and deliver the ferry service on the best harbour in the world."
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