CalMac has warned of potential disruption over the weekend, with a weather warning in place across Scotland.
Storm Dave is expected to batter the country over the Easter Weekend, with a yellow warning for wind across the country and a snow warning in the north-west.
The high winds are likely to affect the ferry service, with CalMac saying: "Due to a Met Office yellow weather warning for wind, customers are advised of possible disruption across our network over Easter weekend. Please plan ahead and check service status before you travel."
As of Friday morning there is disruption on 16 of the 30 routes the ferry service operates.
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The Cloanaig to Lochranza route is affected by tidal conditions and an amended timetable is in place, while all Mallaig-Lochboisdale-Oban services are cancelled due to "disruption across the network".
Recent weeks have seen "unprecedented" strain on the network with up to seven of the company's 10 main ferries out of action for planned maintenance or technical issues.
The Oban to Castlebay service is not taking new bookings from April 5 to 10, while there will be disruptions on the Mallaig to Canna route on Saturdays due to MV Loch Bhrusda being unavailable.
The Oban to Kennacraig service is disrupted until at least April 9 and is not taking new bookings, with MV Isle of Mull operating it on an amended timetable.
The Tarbert to Portavadie service can only operate with 12 passengers at a time due to MV Isle of Cumbrae being in for repairs with an American tug boat, MV Far West replacing her.
Other services across the country are at risk of cancellation or disruption at short notice due to the forecast high winds.
MV Glen Sannox returned to service on the Troon to Brodick route on Thursday having been out of action with engine trouble.
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