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