Musselforge Fitness is one of the many online multiplayer stages in Splatoon 2.
Musselforge Fitness is a sports club that features many high vantage points that look over low areas. It also has many steep ramps leading down to lower parts of the map.
Rock Climbing Wall - The giant rock climbing wall in the center of the stage has many great vantage points over the lower areas of the map. There are also bridges connected to the wall that provide the way to enter enemy territory.
Low Alleys - These alleys that surround the climbing wall are useful for flanking people on top of the wall, and also lead into other low areas.