From A Wiki of Ice and Fire
The Black Canal is one of the canals in the lagoon city of Braavos. The Black Canal, which may be near the Isle of the Gods, is crossed by a carved stone bridge which links the twin temples of Semosh and Selloso.
A Dance with Dragons
Leaving the Isle of the Gods in the center of the city, Arya Stark crosses the Black Canal and makes her way to the Ragman's Harbor.
- ↑ 1.0 1.1 A Dance with Dragons, Chapter 64, The Ugly Little Girl.