Why would they build a “tennis court” on the side of a hill?
Something really odd about that tennis court. GE elevation readout says there’s 10’ of drop from the NE end to the SE end.
If you check elevations on the concrete surrounding the large pool at the NW edge of the island, EL readings are expectedly uniform.
The court is at the highest point on the island, some 30’ higher than where the temple is.
I haven’t a clue on GE’s elevation accuracy.