Near the situation denominated the Conventos, there is a serro of rock moderately elevated, and terminating in a platform near the beach, about six leagues distant from the Mambituba. Six miles further, the river Ararangua enters the sea, and is navigable for the space of five leagues to the Tres Portos, where it is one hundred fathoms wide, and deeper than at the bar, having a rapid current from the month of June to September. Three leagues beyond the preceding, the river Urussanga disembogues, being more extensive, and much more rapid when its waters are high; no vessel can enter its mouth, in consequence of the sea breaking with great violence upon a bank which crosses it. Higher up it is wider, and has four fathoms of depth in some places. This river communicates with a large and deep lake, where the _boto_ and other large fish are seen, which come up from the ocean; it lies northward of the river. Five leagues further is the rock of St. Martha, where the coast changes its direction to the north. Three leagues to the north of the Morro, or rock of St. Martha, is the spacious bay of Laguna, formerly the river Da Lagoa, (of the Lake) which is the mouth of the river Tubarao, and together the outlet of various lakes, prolonged in a chain parallel with the ocean, and at no considerable distance from it. This river rises in the serra that bounds this province, and its current is rapid from April to September. Canoes proceed up it a distance of eight or nine leagues to Porto da Guarda; but _sumacas_ do not pass the mouth of the river Capibary, which joins it by the left bank, and is navigable for a space of eight leagues to Pouzo Alto. On the northern margin of the Tubarao is the outlet of the great lake Laguna, which is five leagues long from north to south, near two at the greatest width, and is of sufficient depth for sumacas, as far as its northern extremity. On the southern bank of the Tubarao, in front of the outlet of the Laguna, is that of the lake of St. Martha, which lake is a quarter of a league square. On its southern side the lake Garopaba discharges itself, is about the same size, and one league distant. Into the latter the outlet of the lake Jaguaruna disembogues, which is two leagues further to the southward, and a little larger. The three together afford a passage to large canoes, as far as the river Congonhas, which is not considerable, and empties itself into the western margin of the latter lake. They are comprehended under the name of the lakes of Camacho, and abound in fish. On the western side of the Laguna, and near its northern extremity, the river Una discharges itself, and affords navigation to canoes for some leagues, as far as the rock of St. Joam. An arm of this river extends a league and a half to the north, is deep, and terminates in a morass.