Question: Which canal or channel, the Houston Ship Channel or the Dismal Swamp Canal,  is part of the Intracoastal Waterway, which parallels the east coast and offers boaters shelter from the Atlantic Ocean from Manasquan Inlet, New Jersey, to Brownsville, Texas?
Sentence (from "Port of Lake Charles"): The Calcasieu Ship Channel provides direct access to the Gulf of Mexico, 34 miles downstream from the city docks.
Relevant evidence: No