I have found mention of the base and Bathurst on this site but again virtually no real information (not a complaint!) As this has been written....
... I wondered whether it may add just a VERY small bit of the story as follows.Though a Royal Navy base at Bathurst, HMS Melampus, was commissioned in March 1942, it is not known whether Coastal Forces enjoyed any specific connection to this base, since they were known to have used Bathurst as a port of call earlier than this date. Bathurst is today known as Banjul.
My father Robert Hiscock, was with the Coastal Forces based at Hornet until May 1942 when he was drafted to Melampus as an ERA and remained there until March 1944. If anyone is able to add information to that I would be SO pleased. His service record is displayed on the World Naval Ships site here
http://www.worldnavalships.com/forums/s ... hp?t=16138
which may be of interest.