Octo Canyon (location)

Octo Canyon is a hidden location near Inkopolis Square, which serves as the setting of the single player mode of the same name in Splatoon 2.

Description
There are five sections with each one having a boss kettle and several invisible kettles for normal levels. Each level contains a Zapfish (including the bosses) that the player must retrieve at the end of each level. In certain levels, there are eight mini zapfish scattered across the level. In this circumstance, the player must capture all eight zapfish in order to earn 1 zapfish.

Trivia

 * According to the second artbook, Octo Canyon is a short hour's trip away from Octo Valley by bus and train. The place itself holds the largest logistics base in the Octarian society and has many research facilities.