At low tide, it was possible to ford the mouth of the Montmorenci, and Wolfe intended that the troops from his camp, on the heights above that river, should cross here, and advance along the strand to cooperate with Monckton's brigade, who were to cross from Point Levi.
On the morning of the 31st of July, the Centurion, of 64 guns; and two armed transports, each with 14 guns, stood close in to one of the redoubts, and opened fire upon it; while the English batteries, from the heights of the Montmorenci, opened fire across the chasm upon the French lines.
At eleven o'clock, the troops from Point Levi put off in their boats, and moved across the river, as if they intended to make a landing between Beauport and the city.

For some hours, Montcalm remained ignorant as to the point on which the English attack was to be made, but became presently convinced that it would be delivered near the Montmorenci, and he massed the whole of his army on that flank of his position.
At half-past five o'clock the tide was low, and the English boats dashed forward, and the troops sprang ashore on to the broad tract of mud, left bare by the tide; while, at the same moment, a column 2000 strong moved down from the height towards the ford at the mouth of the Montmorenci.

The first to land were thirteen companies of Grenadiers, and a detachment of Royal Americans, who, without waiting for the two regiments of Monckton's brigade, dashed forward against the redoubt at the foot of the hill.

The French at once abandoned it, but the Grenadiers had no sooner poured into it, than a storm of bullets rained down upon them, from the troops who lined the heights above.
Without a moment's hesitation, the Grenadiers and Americans dashed forward, and strove to climb the steep ascent, swept as it was by a terrific hail of bullets and buckshot from the French and Canadians.
Numbers rolled, dead or wounded, to the bottom of the hill, but the others struggled on.
But at this moment, the cloud, which had been threatening all day, suddenly opened, and the rain poured down in a torrent.

The grassy slopes instantly became so slippery that it was absolutely impossible to climb them, and the fire from above died away, as the wet rendered the firelocks unserviceable.
The Grenadiers fell back into the redoubt.