Buccaneer is one of the Feats in Conan Exiles.
Source
The book to learn the Buccaneer recipes is located in Buccaneer Bay on one of the upper levels.
Notes
Pirate's Note
Our quartermaster found a chest amongst the flotsam containing a number of peg-legs, hooks and eye-patches. I find them rather dashing. We will begin using them immediately, even if it means cutting off limbs to do so!