Cats were also active from the West and East coasts of South Africa. I used to fly with an old fellow who was ex Bomber - and later Coastal Command when the phenominal endurance of Cats came up - Apparantly he served on Catalinas operating out of Sth. Africa on anti Jap sumarine partrols - where if memory hasnt failed me - was able to locate via Radar surfaced subs etc from 100 miles distant
Also for flying boat buffs there is the amazing true story of the near tragic
transatlantic flight in 1946 told in the book entitled 'The Bermuda Sky Queen' - involving some 65 passengers forced to alight in rough seas in mid atlantic through crew havigational and fuel loading errors - or incompetence.
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