The Coral is a decorations of Oceanic Future. When the Coral is polished, its output of happiness is doubled for 12 hours.
Efficiency[]
+188 per tile.[1]
Image[]
In addition to the default look (shown at the top of the page) the Coral has an alternative look.

Alternative look
References[]
- ↑ The efficiency is calculated by the happiness it provides divided by the number of squares the building takes up in size.