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?
Houston Ship Channel: The Houston Ship Channel, in Houston, Texas, is part of the Port of Houston, one of the US's busiest seaports.
i don't know