Start with one cabbage Seed Box.
Move to Sickle archipelago, south of Fathership. In the middle of the Whole Island, you find a Guy, called Alden. Talk and Trade. (look screenshot for Localisation)
you get a Helmet, that you need for next step













Then Travel to the Leftest up island: Blind Reef
Seach the next NPC in north west of island
Talk with her and give her the Helmet, you get Earplugs

















Move to Turtle Town (city in the west)
in the north of island you find NPC Alonzo. Talk, trade the Earplugs and get Whale Hook


















Then tavel to the whalehunters valley. Stopp your shipp betwen the big gates and move to the east north islandpart, where the east gate is placed.
Find NPC Amos
Talk and Trade the Hook.















You will get a new Weappon: A Crossbow with a Three piece split shot!










Hope it was helpfull. if you have Questions, let me know!
Its my first guide.... so i wuld be happy if you like it.