With the exception of the Recif du Naturaliste which lies about five leagues to the north of the Cape of that name there seems to be no danger in the vicinity of the bay.

The small inlet of Port Leschenault is only the embouchure of a salt-marsh; it is scarcely attainable even by boats; for there appears to be only three feet water on the bar, and over and within it not more than fifteen feet.

The French found no fresh water in any part of Geographe Bay.

From Port Leschenault to Cape Peron the coast is low and sandy but inland it is of a moderate height and appears to be furnished with a slight vegetation.

The French ships sailed along this coast at the distance of four or five miles from the beach, and the report made by them is sufficiently in detail for all the purposes of navigation.
Upon these considerations it was not deemed necessary that we should examine this part again, and therefore sailed at a distance from the land to ensure a quicker passage to Cape Peron, in order to explore the bay behind the Isles of Louis Napoleon.