Buy a Beer Can, use the returned Empty Beer Can for Spider Crab and bring the required result back for the boat key.
- Buy a Beer Can and give it to the Lighthouse Keeper.
- Equip the returned Empty Beer Can on the Crab Fishing Rod.
- Defeat Spider Crab and keep the quest result.
- Return it to the keeper for the boat key, then buy the $10 Radar.
Complete the lady's request, collect three ground leeches and turn the resulting Leech Bait into the Giant Piranha trophy.
- Speak to the lady by the lake and complete the active dinner request.
- Pick up three leeches from the island ground.
- Trade them for Leech Bait.
- Defeat Giant Piranha, then return its named trophy for Desert Island coordinates.
Catch Needlefish, trade it for a Carrot, defeat Pufferfish and return the fin for Rocks Island coordinates.
- Catch Needlefish with the Standard Lure.
- Give it to the tourist under the tree for a Carrot.
- Use the Carrot to summon Pufferfish.
- Return the Pufferfish fin to unlock Rocks Island.
Use the $280 Standard Boss Lure, bring Blue Shark to the Grillmaster and unlock the 1.5× cooking route.
- Buy Standard Boss Lure for $280.
- Summon and defeat Blue Shark.
- Bring the body to the Grillmaster.
- Start the grill to unlock the achievement and cooking loop.
Turn a Professional Boss Lure into Tuna, use the body as Albatross bait and return the bird's head for Volcano coordinates.
- Buy Professional Boss Lure for $1,200.
- Defeat Tuna and keep the body.
- Place it on the ground to draw in Albatross.
- Defeat the bird and return its head for Volcano coordinates.
Help the military, use the whale trigger and finish the two-stage Bowhead Whale ending chain.
- Complete the military dialogue and large-creature objective.
- Use Fish Bucket / Whale Bait for Bowhead Whale.
- Keep the defeated whale for the mutated encounter.
- Defeat Mutated Bowhead Whale and take the final transport to finish the story.