Flameborn 
Underwater Grappling Hook
Tools Rare
A grappling hook that can be used underwater.
Crafting
Ingredients
Crafter 
Carpenter
Carpenter Used in
This item is not used in any known recipe.
Source: see “Underwater Grappling Hook” on the Enshrouded Wiki (enshrouded.wiki.gg, CC BY-SA 4.0)