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Firth of Clyde-Arran Route Down to One Ferry for Most of January

30th December 2025
Ferry disruption continues on the Firth of Clyde-Arran route as aging and new ferries both require annual dry-dockings, which will affect sailings for most of January. Above is last year’s introduced newbuild MV Glen Sannox when making its maiden call to Troon.
Ferry disruption continues on the Firth of Clyde-Arran route as aging and new ferries both require annual dry-dockings, which will affect sailings for most of January. Above is last year’s introduced newbuild MV Glen Sannox when making its maiden call to Troon. Credit: Associated British Ports (ABP)-LinkedIn

On the Firth of Clyde in southwest Scotland, two of the Isle of Arran's main ferries will be out of action for most of January, operator CalMac has confirmed.

The route between Ardrossan (North Ayrshire) and Brodick (Arran), served by the link's oldest ferry, MV Caledonian Isles, dating to 1993, is heading in for its annual overhaul on 4 January.  

While last year’s introduced newbuild MV Glen Sannox, which operates to and from neighbouring Troon (South Ayrshire), Afloat adds that it is at Cammell Laird, Birkenhead, but won't return from its annual service at the Merseyside facility until early February.

This leaves the Firth of Clyde route with just a single ferry to service from Ayrshire to Arran—the chartered in Pentland Ferries car-carrying catamaran MV Alfred, which runs between Troon and Brodick.

At almost a year in service, MV Glen Sannox departed Greenock, Clydeside, on 9 November for an annual overhaul of the first ferry in the UK to be powered by a liquefied natural gas (LNG) propulsion system.

In a statement on services, CalMac revealed, "MV Glen Sannox has completed overhaul works, but ongoing warranty work has resulted in the vessel being unavailable for service until February 2, 2026."

As such, the MV Caledonian Isles will now go off service and leave for its overhaul on 4 January—two days later than planned.

More from the Ardrossan & Saltcoats Herald on the ongoing ferry shuffle scene.

Published in Ferry
Jehan Ashmore

About The Author

Jehan Ashmore

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Jehan Ashmore is a marine correspondent, researcher and photographer, specialising in Irish ports, shipping and the ferry sector serving the UK and directly to mainland Europe. Jehan also occasionally writes a column, 'Maritime' Dalkey for the (Dalkey Community Council Newsletter) in addition to contributing to UK marine periodicals. 

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Ferry & Car Ferry News The ferry industry on the Irish Sea, is just like any other sector of the shipping industry, in that it is made up of a myriad of ship operators, owners, managers, charterers all contributing to providing a network of routes carried out by a variety of ships designed for different albeit similar purposes.

All this ferry activity involves conventional ferry tonnage, 'ro-pax', where the vessel's primary design is to carry more freight capacity rather than passengers. This is in some cases though, is in complete variance to the fast ferry craft where they carry many more passengers and charging a premium.

In reporting the ferry scene, we examine the constantly changing trends of this sector, as rival ferry operators are competing in an intensive environment, battling out for market share following the fallout of the economic crisis. All this has consequences some immediately felt, while at times, the effects can be drawn out over time, leading to the expense of others, through reduced competition or takeover or even face complete removal from the marketplace, as witnessed in recent years.

Arising from these challenging times, there are of course winners and losers, as exemplified in the trend to run high-speed ferry craft only during the peak-season summer months and on shorter distance routes. In addition, where fastcraft had once dominated the ferry scene, during the heady days from the mid-90's onwards, they have been replaced by recent newcomers in the form of the 'fast ferry' and with increased levels of luxury, yet seeming to form as a cost-effective alternative.

Irish Sea Ferry Routes

Irrespective of the type of vessel deployed on Irish Sea routes (between 2-9 hours), it is the ferry companies that keep the wheels of industry moving as freight vehicles literally (roll-on and roll-off) ships coupled with motoring tourists and the humble 'foot' passenger transported 363 days a year.

As such the exclusive freight-only operators provide important trading routes between Ireland and the UK, where the freight haulage customer is 'king' to generating year-round revenue to the ferry operator. However, custom built tonnage entering service in recent years has exceeded the level of capacity of the Irish Sea in certain quarters of the freight market.

A prime example of the necessity for trade in which we consumers often expect daily, though arguably question how it reached our shores, is the delivery of just in time perishable products to fill our supermarket shelves.

A visual manifestation of this is the arrival every morning and evening into our main ports, where a combination of ferries, ro-pax vessels and fast-craft all descend at the same time. In essence this a marine version to our road-based rush hour traffic going in and out along the commuter belts.

Across the Celtic Sea, the ferry scene coverage is also about those overnight direct ferry routes from Ireland connecting the north-western French ports in Brittany and Normandy.

Due to the seasonality of these routes to Europe, the ferry scene may be in the majority running between February to November, however by no means does this lessen operator competition.

Noting there have been plans over the years to run a direct Irish –Iberian ferry service, which would open up existing and develop new freight markets. Should a direct service open, it would bring new opportunities also for holidaymakers, where Spain is the most visited country in the EU visited by Irish holidaymakers ... heading for the sun!