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