Morning all!
No, not Kallang or East Malaysia, but I can see why you say that recalling approaches to Changi from the north over similar looking coastal Malaysia & the waterway of the Johor Strait.
Sycamore - very good, in fact, excellent, but I have a slight issue with "P-75". Other than that, you're still well on the road to a successful I/D.
A couple more clues to lead you in and I'll check in again later on after brekkie cuppa & school run.
