It is totally possible. I asked you for the height of the platforms, you can't come up with that data. Someone is being fooled here. Why would they hide that important piece of the puzzle?
Only 30 feet hidden. Think about that.
Sea level at that particular moment is another hidden variable here (enlarges the height of the platform).
Explain how you come up with 2.74 miles. The platform is 9.41 miles away (59.05 ft). The base should not be visible and you should not see any water behind the platform for miles.
Yes, it would and it is visible, because only 30 feet are hidden behind the physical horizon. Not even considering Fata Morgana, it SHOULD be visible. And it is.
Oh, I figured why you ask "how do you come up with 2.74 miles". I thought you knew this, sorry.
The phenomenon is called Fata Morgana. The visual horizon appears to be way behind the platforms. But the physical horizon isn't there, it's a different thing, it stands at 2.74 miles from the observer. You would need an ass long stick to measure it physically, your eyes won't help measuring it.
