Brian,
you are right it is not Changi, for too many bumps ! One of my problems is that most of the pics were of slides which have not all stood the test of time.
So I had them copied to disc and alas during this process the captions and the order were corrupted. My struggles with the uploading made me careless about the location. I shall try harder in future but one or two will be 'where on earth'.
CoffmanStarter, thanks for your help once again. I may have to consult my 4 year old grandson in future (count to 100 in three languages, capitals of the world etc) He is positive proof that the intelligence gene can skip a generation.