I asked this question the other day and it got closed as being a duplicate.
The answer that I was directed to did help, but didn't solve the full problem.
To clarify, I followed this answer which did nothing and I tried all the different combinations of the Light Path node trying to find one that worked before eventually changing the material from Alpha Hashed to Alpha Blended.
It disappeared from the ocean. I thought I had found the solution but then when I went back to the camera view I realised it was still being reflected in the sun's shine on the ocean.
Here is the issue and the node setup I have:
(If you look on the original question you will see that initially it was showing all over the ocean)
Is there something I have missed?