The Rés Channel is a body of water in the Polassirn Ocean, separating the island of Mûul from the Mainland of the Anrel Isles. It is a busy shipping route serving the port of Por Muel, the royal capital of Trésard.
The northern end of the channel is hazardous, with rocky islands to the west, and shallow shelving coast to the east, leaving a narrow navigable corridor 20 km wide.