These locations are along the line.
This was the terminus and pier of the Greenock and Ayrshire Railway in Greenock.
...
Greenock Princes Pier was rebuilt for the Glasgow and South Western Railway in 1894 in a grand Italianate style. This was to counter the Gourock extension of the Caledonian Railway which opened in 1889 (and even the opening of Craigendoran Pier on the north bank in 1882).
...
This station, on a steamer pier, was the terminus of a short double track branch from Fairlie Pier Junction.
...
This was a terminus on a steamer pier in Ardrossan Harbour. The pier and station were not part of the original Ardrossan and Johnstone Railway but opened with the Ardrossan Railway, replacing Ardrossan Town as the passenger terminus in the town. With the opening of this station further goods lines also opened on the neighbouring piers.
...