[5] J&G Thomson of Clydebank built the ship for the B&CDR,[4] who named her Slieve Bearnagh after the second highest peak in the Mourne Mountains in County Down.

[4] She made her trial run on Belfast Lough on 1 May 1894[5] In the spring of 1893 Thomson had built the slightly smaller steamer PS Slieve Donard for the B&CDR.

[1] She occasionally made excursions to Portaferry on the Ards Peninsula, Ardglass in south Down, and Larne and Portrush on the coast of County Antrim in addition to her regular scheduled route on Belfast Lough.

[4] A report by the B&CDR's General Manager records that in November 1904 her Master, Captain McCorquodale, was summonsed for overloading the ship.

[1] Slieve Bearnagh' buyer was D&J Nicol of Dundee on the east coast of Scotland, with whom she became the largest pleasure steamer on the Firth of Tay.