A Day at the Waterpark: Prologue

Late 19th century, a bright and cloudless summer day above a deeply forested valley bottom: Montana. There are thick trees everywhere--all types of varieties: from maple and oak to poplar and cottonwood. The only exception of this natural sanctuary is a few deforestated areas where quiet towns and villages are built.
At the outskirts of one such city--the very one which is a gateway to one of the most majestic series of mountains, lakes, rivers, and glacier-carved valleys--is a tangled mass of newly discovered materials: plastic, asphalt, cement, and water. This water isn't the normal type of water: this water bestows a burning sting if one is submerged for excess amounts of time. This water also gives a briny, almost bleachy, smell--like somebody had tried too hard to scrub that mud stain out.
Owned by one of the most evil villains to date is the #1 hotspot to wetness, 'chilling out', and fun: the Big Sky Waterpark. This is where our story unfolds... a waterpark...