This cache has been placed in recognition of International Towel Day 2018.
In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move. There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened. What is the point? We assume that every time we do anything we know what the consequences will be, i.e., more or less what we intend them to be. This is not only not always correct. It is wildly, crazily, stupidly, cross-eyed-blithering-insectly wrong! A common mistake that people make when trying to design something completely foolproof was to underestimate the ingenuity of complete fools. If there's any real truth, it's that the entire multidimensional infinity of the Universe is almost certainly being run by a bunch of maniacs. - Douglas Adams
Cache is not at the posted coordinates. Hopefully you know what to do with this clue, and you've already got enough hints. Solve for X and then do a little math, it's really quite easy. The final is in a nearby park (NO NOT THAT ONE!). Cache is smaller, there's no room for items, and BYOP.
You can validate your puzzle solution with certitude.