Here is the full list of all 39 Sea of Survivors achievements.
Visit Every location in Grand Deep
Raid the Pirate Fort
Reach 5000 max health during a voyage
Start a Voyage without a lifeguard
Have 5 feast items in one run
Start a Voyage with 3 crew mates
Reach over 100% crit chance during a voyage
Slay the Kraken
Earn 10k gold in one run
Fill the grid with treasures
Visit six locations during a voyage
have 50 enemies burning at once
Defend Cannonback Isle
Have 5 trinkets at once
Spawn 20 whirlpools at once
Raid the Whirlpool Temple
Heal 1000 in a run
Have over 100 ship speed
Sink a Fire Ship
Visit three locations during a voyage
Get hit 100 times in a run
hit 4 enemies with a single shot
Raid the Lightning Temple
Set sail 6 times, with a unique weapon each time
Salvage Ramstein's Shipwreck
Spend 10 000 at the shipwright
Reach over 100 projectile speed during a voyage
Sink a Barrel Boat
Set sail 3 times, with a unique weapon each time
Reach over 100 projectile spread during a voyage
Sink a Merchant Ship
Block 300 attacks in a single voyage
Finish a voyage without taking damage
Start a Voyage with 3 fully trained crew mates
Complete a voyage using only melee weapons
Sink 10,000 foes with fire
Earn 20k gold in one run
Finish a voyage with only one weapon
Sink 20 000 foes in a single voyage