Cairns Fast-Tracks Dredging After Cruise Ship Port Changes

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There could finally be some good news ahead for cruise passengers scheduled to visit Cairns, with dredging getting underway at the Port of Cairns after unusually high silt levels caused problems for several recent Carnival cruises.

Ports North has expedited its 2026 maintenance dredging campaign after sections of the Trinity Inlet shipping channel dropped below the depth required for some larger cruise ships to safely reach the Cairns Cruise Liner Terminal.

The dredging is due to begin on Friday, 18 September and continue until early November.

The Port of Cairns relies on a dredged shipping channel through Trinity Inlet, with a designed channel depth of 9 metres.

According to Ports North, unusually high rates of siltation have reduced the depth below 9 metres in some areas.

Annual maintenance dredging is normally carried out to maintain sufficient depth for deep-draft vessels, but Ports North says unusually high siltation has also affected other Queensland ports, creating difficulties securing dredging services.

In the meantime, Ports North has been using measures including bed levelling in affected areas while exploring alternative dredging options and bringing forward the 2026 dredging campaign.

The dredging will now continue through to early November under the port's existing Great Barrier Reef Marine Park Authority permit, with Ports North saying restoring the channel to its designed depth is a priority.

The channel-depth problem has already caused significant changes for passengers on two Carnival ships.

Carnival Encounter was originally scheduled to visit Cairns during its six-night Great Barrier Reef cruise departing Brisbane on 5 September.

Instead, the Cairns call was cancelled and the ship visited Townsville on 9 September.

Carnival Encounter was carrying almost 3,000 passengers and around 1,100 crew at the time.

Townsville was able to accommodate the ship following completion of its $251 million channel widening project last year.

Another Carnival Encounter sailing could also be affected while the dredging work continues.

Encounter is due to depart Brisbane on 26 September, with Cairns scheduled for 29 September. Carnival has already changed the itinerary from an overnight stay in Cairns to separate visits to Cairns and Townsville.

Carnival has not yet advised whether Encounter will dock at the Cairns Cruise Liner Terminal or tender from Yorkeys Knob for its Cairns visit. With dredging still underway, passengers on the sailing should keep an eye on any further updates from Carnival regarding arrangements for the port call.

Carnival Splendor was also affected during its Great Barrier Reef cruise departing Sydney on 9 September.

Rather than docking at the Cairns Cruise Liner Terminal as originally planned, Splendor anchored off Yorkeys Knob on 13 September and passengers travelled ashore using tenders.

The change also resulted in alterations to the ship's arrival and departure times and other parts of the itinerary.

For Splendor passengers, that created another problem.

Large queues formed at Yorkeys Knob later in the day as passengers waited for tenders back to the ship, with photos showing crowds stretching through the tender area.

For cruise passengers, arriving at the Cairns Cruise Liner Terminal is considerably easier than tendering through Yorkeys Knob.

The Cairns terminal sits right beside the CBD, allowing passengers to simply walk off the ship and into the city.

Yorkeys Knob requires passengers to first travel between the ship and shore by tender before continuing into Cairns or heading to shore excursions.

Tender operations are a normal part of cruising, but they can take considerably longer when thousands of passengers are trying to move between ship and shore during a relatively short port visit.

That became particularly obvious during Carnival Splendor's recent Yorkeys Knob visit.

The impact isn't limited to passengers either.

Cairns MP Michael Healy raised concerns about the money local businesses lose when thousands of cruise passengers who were expected to arrive in the centre of Cairns instead visit another port or spend part of their day travelling from Yorkeys Knob.

Not necessarily straight away.

The start of dredging is a positive development, but Ports North has not announced a date when all affected cruise ships will once again be able to safely use the Cairns Cruise Liner Terminal.

Work is expected to continue until early November as the channel is restored to its designed depth of 9 metres.

Cruise passengers with upcoming Cairns calls should therefore continue checking communications from their cruise line.

It is also worth checking carefully before booking independent shore excursions, particularly while ships may still be moved between the Cairns Cruise Liner Terminal, Yorkeys Knob or another port.

Carnival generally adjusts its own pre-purchased shore excursions when itinerary changes occur, but passengers who book independently need to check the cancellation and port-change conditions offered by their tour provider.

For now, at least, the dredges are on the way.

After diversions, itinerary changes and one particularly impressive Yorkeys Knob tender queue, that's probably welcome news for both cruise passengers and Cairns businesses.