Water on three sides, one road in.
Thirty-three private acres, and the land narrows to a point, so the lake wraps around almost the whole property. You turn in off Starry Night Lane through a gate, pass a hay field a local farmer still cuts, and come round the corner to the whole of Lake Monticello with both domes sitting above it.
Past the gate it is grass, trees and shoreline, and the only people on it are the ones staying in the domes. That geography does most of the work: wherever the children are, they are still on your land and within earshot.