The Far Harbor Add-on for Fallout 4 has 10 achievements.
Discover 20 Far Harbor Locations
Defeat 30 Far Harbor Sea Creatures
Complete the quest "Far From Home"
Complete the quest "Where You Belong"
Complete the quest "Cleansing the Land"
Collect all issues of "The Islander's Almanac" magazine
Complete the quest "The Way Life Should Be"
Complete the quest "Close to Home"
Unlock 3 Far Harbor Workshop Locations
Cook One of the New Far Harbor Recipes