The Sunset Harbor Add-on for Cities: Skylines has 7 achievements.
Farm 7 500 000 units of fish and sea plants.
Catch 10 000 000 units of fish.
Build one of each of the following transport hubs: Underground Metro-Intercity Bus Hub, Bus-Intercity Bus Hub, Train-Metro Hub, Metropolitan Airport, Bus-Metro Hub
Transport 35 000 amount of citizens in trolleybuses.
Transport 15 000 amount of citizens in passenger helicopters.
Have 60 tourists visit the Aviation Club during one week.
Treat 20 000 000 m3 of waste water using the Inland Water Treatment Plants.