Using a St Lawrence seaway for amphibious operations

What would a Royal Navy passage through an open St Lawrence seaway have looked like during the War of 1812?

It would likely have become a combined naval and amphibious corridor for warships, troops, and supplies rather than a lone blockade run.

An open St Lawrence seaway would likely have carried troops and supported amphibious operations rather than serving only isolated blockade runs. Later British operations in the Opium Wars show how warships and soldiers could combine mobility with overwhelming gun power along inland waterways. Infantry carried aboard could help clear chains, batteries, and other obstructions while ships attacked defended positions. Canal and river infrastructure determined whether maritime firepower could reach an inland theatre at all.