Also, Trade Routes passing through a Canal receive bonus Gold.
A single canal passage may go either straight, or bend 60 degrees three-way canals are not allowed. The Canal must be built on flat land with a Coast or Lake tile on one side, and either a City Center or another body of water on the other. It requires Steam Power (or Masonry for Qin Shi Huang). The Canal is a District in Civilization VI: Gathering Storm that provides passage from a body of water to a City Center or another body of water.
