Every autumn, Kantai Collection begins their annual Saury-catching mini-event, where admirals scramble to catch as many Saury they can find in exchange for prizes. Of course, this also brings out new costumes, which just aren’t limited to the shipgirls trying to catch some fish.
Saury and Mackerel Fishing CGs
Amphibious Assault Ship Akitsu Maru
Italian Heavy Cruiser Zara
Light Cruiser Tama
Destroyer Shigure Kai Ni
Submarine Tender Taigei/ Light Aircraft Carrier Ryuuhou
Yuudachi kai Ni
Aircraft Carrier Amagi
Fast Battleship Kongou
Admirals can try and catch Saury in several specific maps and exchange them for specific equipment as rewards. They can also exchange them for furniture by completing certain quests.
Images: KanColle Wikia