Just not going to dismiss it out of hand, but there's 2 things about drones that make this idea tricky:

1. The noise sucks. They sound like mosquitoes on steroids, and any drones big enough to hang a tarp would be even worse.
2. They generate a fair bit of downdraft, which means whatever's hanging from them would have to be out of the range of the draft. Otherwise, they would just be pulling themselves down. The rigging means more weight, and more distance between drone and shade.

Maybe we should just add more pool sections.

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