Shark Seattle

Shark Seattle is an other-dimensional universe, connected tangentially to Seattle in the Immaterial Plane and its corresponding Mirror World counterpart Dark Seattle. Observation of its boundaries by those who have explored it indicates that it only encompasses the city of Seattle itself; however, further expeditions to gather information may indicate otherwise.
Shark Seattle is a version of Seattle that is completely underwater and inhabited solely by sentient sharks. Said sharks bear remarkable resemblance to folk from the Immaterial Plane; it is assumed that the inhabitants of this universe correspond with the inhabitants of Lightside Seattle but in sharkish form. It has not yet been determined whether these inhabitants were always sharks or became sharks at some point in the past.
The sharks of Shark Seattle appear to have the ability to construct advanced gravity-defying technology and infrastructure, and the city itself is built around and accommodates swimming and underwater movement. 
Shark Seattlites are notably and proudly not Consumers. Consumers appear to not be welcome in Shark Seattle, or at least, what references that Shark Seattle writing and advertising materials include to Consumers seems to indicate they are not considered friends.
Shark Seattle has its own Blaseball team, the Shark Seattle Garages. They play at their home field, the Jaylen Hotdogfishfins Memorial Climate Pledge Stadium And Parking Facility. Unlike the inhabitants of Dark Seattle, Shark Seattle’s denizens seem to have no real negative opinion of the inhabitants of other dimensions; the exception being that they consider the lightside Chorby Soul to be somewhat of a celebrity. 
Sharks Beans, a patron of the Emblem Warhorse, hails from Shark Seattle, and they travel between the two dimensions at will. 
===Shark Adaptation===
Anecdotal evidence has been found that the water in Shark Seattle, if ingested by someone who is not a shark, may cause a form of adaptation that results in the development of shark-like traits such as fins, gills, cartilage, and sharp teeth. This evidence was found by Seattle Garages players Lenjamin Zhuge, Alaynabella Hollywood and Wyatt Mason X while on a reconnaissance mission to the dimension in season 21. As the trio acquired several pieces of gravity-defying construction technology by totally legal means from a warehouse aquarium owned by unscrupulous shark house-flippers, they came into contact with water from a tank in the aquarium. The trio returned to Lightside Seattle having developed shark-like features themselves, which they traced to their time in the dimension.
Zhuge, with the assistance of fellow Garages Fairwood Patchwork and Kathy Mathews, used the technology acquired totally legally from Shark Seattle to construct the Salmon Spire, a swirling, towering antigravity mass of Immateria roughly in the proportions of a skyscraper, filled with salmon, consumers, and other forms of life. Zhuge has been noted to use their sharkish adaptations to swim in the Spire and catch salmon every once in a while.
===Accessing Shark Seattle===
The city can be somewhat erratically accessed through the Seattle Gum Wall, from either side of the portal. There is a 1% chance that users trying to utilize the portal to leave either Lightside Seattle or Dark Seattle will end up in Shark Seattle. This statistic can be reset by walking away from the Gumwall, turning around, walking back to the entrance, and repeating as needed.
There also appears to be a portal to Shark Seattle in the bathroom of the Emblem Warhorse bar. It is not clear how this portal got there, but it appears to be the manner through which Sharks Beans accessed Lightside Seattle. To date, the stall continues to be blocked off from use with caution tape and several sticky notes on the door that read “Don’t Sharks Open Inside.”