The south coast, on account of its exposure to the open ocean, the consequent high swell or surf which breaks on it, and its general want of good anchorage, is seldom visited by shipping. But even here harbours may be found; and those of Cheláchap and Pachítan might, no doubt, be frequented with safety, were it considered desirable to attract commercial adventurers to this side of the island.

Passing from the coast to the interior of the country, the stranger cannot fail to be struck with the bold outline and prominent features of its scenery. An uninterrupted series or range of large mountains, varying in their elevation above the sea from five to eleven, and even twelve thousand feet,[21] and exhibiting, by their round base or pointed tops, their volcanic origin, extend through the whole length of the island.

The first of this series, commencing from the westward, is in Bantam. This mountain (Gûnung-kárang), though of moderate elevation compared with others on the island,[22] is seen at a considerable distance from sea, and is a well known landmark to mariners. It lies due south of the town of Bantam, at a considerable distance from the sea.

The next mountain of the series is the Salák, the eastern foot of which is connected with the Gedé or Panarang'o, situated about fifty miles south of Batavia. These two mountains are seen from the roads of Batavia, and, from the appearance they exhibit, are usually termed by mariners the Blue Mountains.

From the eastern part of the Gedé, the volcanic series separates into two independent branches, one of which inclines to the south; the other proceeds almost due east, slightly verging to the north. The former breaks into an irregular transverse range, which extends across the island, till it approaches the northern branch, from whence the general series is continued in an easterly direction as far as the mountain Sindóro, the western of the two mountains known by mariners as the Two Brothers. The mountain Súmbing, or Sindári (the second of The Brothers), is somewhat further to the south.

At a short distance from the eastern foot of the mountain Súmbing are three large volcanos, in a direction almost north and south, dividing the large series transversely; these are the mountains Ung'árang, Merbábu, and Merápi. The next volcano, in an eastern direction, is that of Japára, which deviates more than any other from the regular series, and forms a peculiar peninsular appendage to the island. The series is then continued in an easterly course from the Merápi as far as the mountain Telágawúrung, which is in contact with the ocean at the eastern end of the island.

The several large mountains comprised in this series, and which are in number thirty-eight, though different from each other in external figure, agree in the general attribute of volcanos, having a broad base gradually verging towards the summit in the form of a cone.

They all rise from a plain but little elevated above the level of the sea, and each must, with very few exceptions, be considered as a separate mountain, raised by a cause independent of that which produced the others. Most of them have been formed at a very remote period, and are covered by the vegetation of many ages; but the indications and remains of their former irruptions are numerous and unequivocal. The craters of several are completely extinct; those of others contain small apertures, which continually discharge sulphureous vapours or smoke. Many of them have had irruptions during late years.[23]

Besides the mountains of the larger series above described, there are extensive ranges of mountains of an inferior elevation, sometimes connected with the larger series, and sometimes independent of them, which are also for the most part volcanic. Numerous ridges of hills traverse the country in various directions, and the surface of the island in general, independently of these more striking features, is in most parts undulating and uneven, except on the sea coast.

A country which abounds in mountains is seldom deficient in rivers; accordingly, no region is perhaps better watered. Java is singularly favoured in the number of its streams. The size of the island does not admit of the formation of large rivers, but there are probably fifty, that in the wet season, bear down rafts charged with timber and other rough produce of the country, and not less than five or six at all times navigable to the distance of some miles from the coast. It would be vain to attempt numbering those which are precious to the agriculturist; they are many hundreds, if not thousands.