The Sunset Harbor Add-on for Cities: Skylines has 7 achievements.
Have 60 tourists visit the Aviation Club during one week.
Transport 35 000 amount of citizens in trolleybuses.
Transport 15 000 amount of citizens in passenger helicopters.
Catch 10 000 000 units of fish.
Farm 7 500 000 units of fish and sea plants.
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
Treat 20 000 000 m3 of waste water using the Inland Water Treatment Plants.