The "Griffin" had lain moored by the shore, so near that Hennepin could preach on Sundays from the deck to the men encamped along the bank. She was now forced up against the current with tow-ropes and sails, till she reached the calm entrance of Lake Erie. On the seventh of August, the voyagers, thirty-four in all, embarked, sang _Te Deum_, and fired their cannon. A fresh breeze sprang up; and with swelling canvas the "Griffin" ploughed the virgin waves of Lake Erie, where sail was never seen before. For three days they held their course over these unknown waters, and on the fourth turned northward into the strait of Detroit. Here, on the right hand and on the left, lay verdant prairies, dotted with groves and bordered with lofty forests. They saw walnut, chestnut, and wild plum trees, and oaks festooned with grape-vines; herds of deer, and flocks of swans and wild turkeys. The bulwarks of the "Griffin" were plentifully hung with game which the men killed on shore, and among the rest with a number of bears, much commended by Hennepin for their want of ferocity and the excellence of their flesh. "Those," he says, "who will one day have the happiness to possess this fertile and pleasant strait, will be very much obliged to those who have shown them the way." They crossed Lake St. Clair, [Footnote: They named it Sainte Claire, of which the present name is a perversion.] and still sailed northward against the current, till now, sparkling in the sun, Lake Huron spread before them like a sea.