I have heard this song sung by many singers including myself.
The correct version of Verse 4 (according to Cyril's Songbook)
"Been with Johnny all the day,
Hey, the last boat's a-leavin
Out at Inetuffeya Bay.
Call away the dyso."

But I've heard the third line sung thus:
Went to drive round Deal's Bay???

I have heard "St Paul's Square" (and not as it should be: Paula's Sq)

I must confess that I have not adhered to the proper version.

But I aim to put that to rights!

Beautiful song, Cyril!