Here is the full list of all 7 Port of Call achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Mix the wrong drink for the Drunkard.
Choose to go with the Waiting Woman
Choose to go with the Ferryman
Board the Ferryman's ship.
Inspect all 6 paintings on the ship in one playthrough.
Pick up all 6 crayons on the ship in one playthrough.
Collect all 4 of the passenger's tickets in one playthrough.