Really, the only true 'fix' for this is to not bang the colours quite so hard in the first place…
or, I suppose, to have used a polarising filter to kill the majority of the reflections before they reached the sensor.

From what you already have, a workaround would be to mask out one half of the image & reduce saturation in that. There are many ways to do this, here's one… All done in Photoshop, other graphics apps should have similar control. Images all intentionally small.

Select the lower half using the Magnetic Lasso tool

Use Layer > New > Layer via cut

Dial back the saturation, vibrance &/or perhaps also selectively dial out saturation from magenta through to orange, leaving blues & greens.

Result - dull water & land, overkill bright sky.
You could extend this further by intentionally re-toning the water to be a more uniform blue.

In all honesty, I'd start with less overall colour-punch &/or use a 'smarter' app; something like Luminar can do this type of thing a lot more subtly [or a lot less subtly, if you push it;)