Champlain described it as "very pleasing and flat." From the island, he spotted the famous Montmorency Falls.
This is where he met the Algonquians who explained to him what was found above Montreal. They taught him about the Great Lakes and confirmed what he already knew about the Ottawa River. The Algonquians alluded to Hurons who lived near the lake of the same name.
Champlain's caution proves how important it is to plan the itineraries for a voyage.
Nice recovery! Champlain travelled the St. Lawrence River from Tadoussac to Quebec and ended up at Sault Saint-Louis and nearly died near Île d'Orléans because of terrible weather.
Montmorency Falls, Summer Scene, Montmorency, Quebec [ca. 1870]
Louis-Prudent Vallée/National Archives of Canada/PA-147338