Do not go to the listed cords. The cache is not there and you would have to swim.
The show Stranger Things has a group of kids who are fighing off demons who are in a parallel world called the Upside Down. Since I like the horror genre, here is a mystery cache that is a play on that concept. To find the final container, you have to figure out where it is in the upside down.
-26.102947, 99.862938
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