Created by the convergence of Copano Creek, the Mission River, and the Aransas River, Copano Bay is a rich marine habitat which is dotted with oyster reefs through out its waters. Like many of the bays of the Texas Coastal Bend, navigating Copano Bay can be hazardous to boaters that are not familiar with it and its seemingly random oyster reefs.
Copano Bay and its supporting estuaries, Mission Bay and Port Bay are very popular year round for anglers targeting redfish and trout. Its reef system in the open water give its marine life the structure they need to strive and the rivers and creeks give inflows of nutrients and deep cuts for fish to run up in during cold snaps.