Sunken Boosters

Sunken Boosters is a quest in Xenoblade Chronicles 2. It is a DLC quest introduced in version 1.5.1 as part of the New Quests Pack 4 DLC. It can be received from Borella in Gwendle Repair Dock in Fonsa Myma, Kingdom of Uraya. After the quest is completed, Seesaw will be able to craft Booster Cylinders with the provided materials, which can be used at the Salvage Point in Lascham Island to salvage for boosters.

Quest objectives

 * Speak to Seesaw in Torika Alley in Uraya.
 * Get a Booster Cylinder made by Seesaw. He's in Torika Alley in Uraya.
 * The Silver Cylinder can be bought in any Salvager's, the Zigzag Shaft can be salvaged in Argentum and the can be salvaged in Gormott.

Results
"Thanks to Seesaw's hard work, the Booster Cylinder is complete! Use it to salvage on Lascham Island, Gormott. (DLC Quest)"