Photo 1 is a 1960’s photo of Changi Creek courtesy of Allan MacKinnon @ Memories of Singapore.
Photo 2 is a photo I took while exploring the Changi Board Walk last year.
To help you make sense of some of the discussion in Peter's earlier post, here is a scan from a very tiny electoral divisions map of Singapore from a 1963 street directory. Can you see the Tanah Merah Besar Road and Nicoll Drive junction? Notice the coastline and how long Nicoll Drive was.
Below is something from the internet. The producers have been so kind as to indicate the position of what used to Kampong Ayer Gemuruh. To help you picture the coastline in relation to the present Changi Airport, I have added a scan from the 1963 street directory below.