I found another 3 old photos of my father and his buddies. The first 2, where they are in swim-wear, has these words written at the back of both photos; “Picnic at Paradise Island, 26 Oct 1947”.
The 3rd photo, where they are in office attire, has these words written at the back; “Picnic at Pasir – something, 28 Nov 1948”. I can’t make out the last word. Looks like Ris which has been scratched over and re-written Elias. My guess is that this photo was taken in Pasir Ris Beach.