| If it was me, look at pic #1 you put up, see the short fat palm to the right of the pond, to it's right is a fern bush, behind that against the fence is where I would put the bakki, run two 4" returns hidden by the green groundcover there, then lip them over the edge of the pond.
If the noise is too much or they are still too visible for you, then you need a guy's design I saw on koichat who had a tiny greenhouse over his showers.
Anything right next to the pond will ruin the way that whole pond looks imho.
The only other acceptable option I could see would be to build a tall rock waterfall to the rear of the pond, and hide the showers either inside it or behind it. |