Here is the full list of all 47 Sail Forth achievements.
Defeat the Skull Clan Gang Boss, Marga Underskull!
Defeat the Island Crested Crustacean, Giant Enemy Kreb!
Defeat the Autogarch Tek Tyrant, Gelgar Rumbleshunt!
Defeat the Ocean Ice Gargant, Coldcrust Glimmerfist!
Defeat the Embiggened Barnacle Moray, Volcanic Leviathan!
Defeat the Oscillating Deadrock Doombringer, Cosmic Saucership
Help Wayward Bello recover the Aurora Lantern
Help the C.C.C. build the Frogghammer.
Help the Anglerwranglers catch a Wranglerfish.
Help the Moontiders free Majesty Nausicaa from the Magik Sphere.
Finish the Tutorial
Receive all of the Croaker Medals from Admiral Picklepea
Have a chat with Agent Croquet in the Autumn Isles
Get a helpful Fish Tip from ol' Anglerwranglest Kerblapp
Win a game of Blowfish with Kerblapp and Othoo.
Knock over an Ice Spire onto an enemy vessel.
Startle a pengy into jumping into the water for a swim.
Recieve all of the Royal Moonflowers from Majesty Nausicaa
Harpoon a Tainted Barnacle from a Sea Creature
The Magik Shell Shop is open for business.
Visit Captain Toot and Goose in the Postgame
Finish the game and sail off into the sunset.
Conveyed a strange Ancient Junk relic to a Lightkeeper.
Deliver every piece of Ancient Junk to the Lightkeepers.
Catch every fish and complete your collection.
Photograph everything for Snapps and complete your collection.
Fill out half of your Fish Collection. Keep it up!
Fill your Photo Collection halfway. Nice work!
Spend a modest amount of Boat Parts at Shipshape Shops
Spend an abnormal amount of Boat Parts at the Shipshape Shops
Spend a preposterous amount of Boat Parts at the Shipshape Shops.
What's that smell? Is something burning?
Light an enemy vessel on fire.
Win a race against Zimothy and Dexter.
Defeat the Deep Six at least once in every World.
Complete one of Wesley Dudshooter's target courses.
Complete all of Wesley Dudshooter's target courses.
Complete your first Light Prism event with the Lightkeepers.
Complete all of the Lighthouse Prism events.
Defeat the Betentacled Prism Realm Guardian, Eternal Night Kraken!
Track down an illegal trader for the Croakers.
Completely shut down the illegal trade ring for the Croakers.
Conclude the sticky situation between Marley and Scampy.
Keep your sails perfectly adjusted for at least 15 seconds.
Successfully board an enemy vessel.
Sink your first enemy vessel.
Capture a Tekk Clan Tanker.