ST Gunundaal was an auxiliary minesweeper operated by the Royal Australian Navy (RAN). Gunundaal was operated commercially as a fishing boat until she was acquired on 8 October 1917 for minesweeping duties during World War I. Gunundaal was returned to her owners in February 1918. She was renamed Gilbert San on 22 March 1928.
|Port of registry:||Sydney|
|Builder:||Smiths Dock Company, South Bank|
|Launched:||3 December 1914|
|Identification:||UK Official Number: 152169|
|Fate:||Wrecked near Cape Howe in 1929|
|Fate:||Returned to owners in 1918|
|Class and type:||Castle class trawler|
|Tonnage:||217 gross ton|
|Length:||115 ft (35 m)|
|Beam:||22 ft (6.7 m)|
|Depth:||11.9 ft (3.6 m)|
|Propulsion:||Triple expansion engine|
Gilbert San was wrecked on a reef near Cape Howe on 4 November 1929 and declared a total loss.