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Reefs are a terrain feature in Civilization VI: Rise and Fall. Reefs are found exclusively on Coast tiles.


Reefs are an aquatic terrain feature found along the coastline. They block the construction of Harbors, Water Parks, and wonders, but are otherwise very valuable on their own. They increase the Food Food and Production Production potential of their tile and provide a Strength Combat Strength bonus to units defending there. They can also contain Fish Fish and Turtles Turtles and thus accept the Fishing Boats improvement, which makes them even more valuable.

After fully developing the Harbor of a nearby city, a Reef tile will yield +3 Food Food, +1 Production Production, and +5 Gold Gold, as well as +1 Science Science if you also have a Water Park with an Aquarium.

Reefs provide a +2 Science Science adjacency bonus for Campuses.

Civilopedia entry[]

Reefs form beneath the surface of open water and serve as speedbumps for ships. Though some are composed of inorganic material such as sand, rock, or accumulated shipwrecks on reefs made of sand and rock, the most vibrant are coral reefs found in tropical waters.


Civilization VI Terrains [edit]
Base CoastDesertDesert (Hills)GrasslandGrassland (Hills)HillsLakeMountainsNile River3OceanPlainsPlains (Hills)SnowSnow (Hills)TundraTundra (Hills)
Features Cataract3CliffsFloodplainsDesert FloodplainsGrassland FloodplainsPlains FloodplainsGeothermal Fissure GS-Only.pngIceImpact Zone1 2MarshOasisRainforestBurning Rainforest1Burnt Rainforest1Reef R&F-Only.pngRiverVolcanic Soil GS-Only.pngVolcano GS-Only.pngWoodsBurning Woods1Burnt Woods1
Other Barbarian OutpostMeteor Site1Tribal Village
See also ImprovementNatural WonderResource
1 Requires a DLC2 Apocalypse mode only • 3 Specific Scenarios only

R&F-Only.png Added in the Rise and Fall expansion pack.
GS-Only.png Added in the Gathering Storm expansion pack.