Please note-- the cache is NOT at the posted coordinates!
This cache is meant to highlight one of my favorite video games of the past few years: Hollow Knight, by Team Cherry. In this game, you assume control of the Knight, an enigmatic bug who travels to the kingdom of Hallownest for unknown reasons, then descends into its depths to unravel the mysteries therein. The immense and interconnected world, breathtakingly beautiful artwork, detailed and rich lore, and surprisingly immersive story told primarily through items and environmental clues, make for a truly unique experience. It is an absolute masterpiece, and can be purchased for only $15 off Steam.
You can obtain the information needed to solve the puzzle by playing the game (highly recommended), or by using Google liberally (probably quicker). With that in mind, the puzzle is below:
Flukemarm is a particularly loathsome enemy in Hollow Knight, who uses her own offspring as weapons as you fight her in the Royal Waterways: a festering, stinking sewer. Yet she is only one of the bosses you will encounter on your adventure. The game has multiple possible conclusions, yet in the game's most difficult ending, you face one final, gutwrenching marathon of a challenge before you Embrace the Void.
You can't hope to beat the game without being well-equipped with Charms. Each player will find a set of Charms that works best to his or her play style, yet for this particular challenge, the following setup may be particuarly helpful. If nothing else, it provides a base6that you can build upon:
https://s3.amazonaws.com/gs-geo-images/6b057760-e5e8-4f32-bac7-2a4e6565214f_l.png
With the right charms in your armamentarium, you can finally Embrace the Void and beat the game! Here are some of the enemies that you will encounter in that final challenge; maybe they're trying to tell you something that may aid you in your quest?
nothing to see here
Once you have the final coordinates, please use caution at ground zero! Weather conditions may make this cache hazardous, so please be careful and remember that you cache at your own risk!

You can validate your puzzle solution with certitude.