There is an unscheduled closure of Ardrossan Harbour from 7 September to 8 October, to allow for the replacement of fenders, and upgrades to the linkspan (again).
All services from Ayrshire to the Isle of Arran will run to and from Troon, with amended schedules, as posted here- https://www.facebook.com/photo/?fbid=1356758913211070&set=a.425531123000525
CalMac will be in contact with all existing bookings.
This information is breaking news, and is not yet on the CalMac website
Foot passengers should have a bus provided from Ardrossan to Troon, to be confirmed.