I tried to get them all snapped. That was one hole where the fairway went straight-line across the middle of the green.

I'm not mapping by Google Earth. I'm just using it for timeline images that help to understand what is seen in the static image we use here.
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I don't think so. Too much curvature between points. It looks more like an above ground metal panel pool that isn't completely filled. The water helps hold the sides in compression, rounding out the pool. In a Google Earth image from 8/2018, there is obviously a trampoline there. You can see the black surface and the blue padding around the perimeter. In the 2/2019 image, it is gone. In the 9/2019 image, the blueish object is in place, but much rounder. The image you are seeing here is the 9/2020 image. Google Earth has it MUCH clearer. You can see the blueish object (the pool) and the black object has returned just north of the pool.In the 5/2021 image, the black object is where the blueish object is in the image here. I think they are using the trampoline as a pool cover. They aen't using it as a trampoline any more. The blue safety padding is gone.

FYI - thanks for the pointers on not gluing to other objects. I didn't realize that was happening until my next task.
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Published using OSMCha: https://osmcha.org/changesets/132080848

The aerial imagery shows a blueish irregular circle and a black circle. The black circle looked like a trampoline. I marked the blueish one as a pool.
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Published using OSMCha: https://osmcha.org/changesets/132080848