For a few hours we followed the river, which led nearly to the edge of the plateau. When the path branched off, I called a halt for lunch, as we were not likely to find any water later on. We were now quite near the craters, and while we ate our rice, we heard the roaring, so that the boys grew nervous, till the joker of the company made them laugh, and then the meal absorbed their attention. Still, they occasionally sent furtive glances skyward, to see if any lava was coming down upon us.

Having filled all our vessels with water, we marched on, and after a short ascent, found ourselves on the great plain, 650 mètres above sea-level, about 12 kilomètres in diameter, and shaped like a huge dinner-plate, a chain of hills forming the rim. It would seem that the whole plain was formerly one gigantic crater; now only two openings are left, two craters 500 and 700 mètres high, in the north-west of the plain.

The ground consists of black, coarse-grained slag, which creaks when walked on, and forms a fine black dust. Naturally the vegetation in this poor soil is very scanty,—only bushes and reed-grass, irregularly scattered in the valleys between little hillocks ranged in rows. This arid desert-scene is doubly surprising to the eye, owing to the sudden change from the forest to the bare plain.

In this seemingly endless plain, the two craters rise in a bold silhouette, grimly black. One of them stands in lifeless rigidity, from the top of the other curl a few light, white clouds of steam. It is a depressingly dismal sight, without any organic life whatever on the steep, furrowed slopes.

We camped on a hillock surrounded by shrubs; on all sides spread the plain, with low hills, rounded by rain and storm, radiating from the craters, and where these touched, a confused wilderness of hills, like a black, agitated sea, had formed. The hilltops were bare, on the slopes there clung some yellowish moss. The farther away from the craters, the lower the hills became, disappearing at the edge of the plain in a bluish-green belt of woods.

The sky was cloudy, a sallow light glimmered over the plain, and the craters lay in forbidding gloom and lifelessness, like hostile monsters. Hardly had I set up my camera, when the western giant began his performance. The clouds of steam thickened, detonations followed, and at each one a brownish-grey cloud rose out of the mountain, whirled slowly upwards, and joined the grey clouds in the sky. The mountain-top glowed red, and red lumps of lava came flying out of the smoke and dropped behind a hill. Then all became quiet again, the mountain relapsed into lifelessness, the clouds dissolved to a thick mist, and only the steam curled upward like a white plume.

I had taken care to observe how far the lava flew, so as to know how near it would be safe to approach. The path towards the craters was the continuation of the one we had followed, and led to the north shore of the island, passing between the craters. It is remarkable that the natives should dare to use this road, and indeed it is not much travelled; but it speaks for the courage of the first man who had the courage to cross the plain and pass between the craters. The sharp points of the lava caused great suffering to the bare-footed natives, and here I had the advantage of them for once, thanks to my nailed boots.

The clouds had disappeared, the sky shone deeply blue, everything reminded me of former trips in other deserts. The same dry air cooled the heat that radiated from the ground, the same silence and solemnity brooded over the earth, there was the same colouring and the same breadth of view. After the painful march through the forest, where every step had to be measured and watched, it was a joy to step out freely and take great breaths of clear, sweet air.

After a short, steep climb, I reached the ridge, sharp as a knife, that joins the two craters, and following it, I suddenly found myself on the brink of the crater, from which I could overlook the great bowl, 800 mètres wide. The inside walls fell vertically to the bottom, an uncanny, spongy-looking mass of brownish lava, torn, and foaming, and smoking in white or yellowish clouds. The opposite side rose much higher, and the white cloud I had seen from below floated on top. There was a smaller crater, the real opening, and through a gap in it I had a glimpse inside, but failed to see much because of the smoke. The general view was most imposing, the steep, naked walls, the wild confusion in the crater, the red and yellow precipitates here and there, the vicious-looking smoke from the slits, the steam that floated over the opening, swayed mysteriously by an invisible force, the compactness of the whole picture, in the gigantic frame of the outer walls. There was no need of the oppressive odour, the dull roaring and thundering and hissing, to call up a degree of reverent admiration, even fear, and it required an effort of will to stay and grow used to the tremendous sight. The first sensation on seeing the crater is certainly terror, then curiosity awakens, and one looks and wonders; yet the sight never becomes familiar, and never loses its threatening aspect. Still, the inner crater may be a disappointment. From a distance, we see the great manifestations, the volcano in action, when its giant forces are in play and it looks grand and monumental. From near by, we see it in repose, and the crater looks quite insignificant. Instead of the fire we expected to see, we find lava blocks and ashes, and instead of the clash of elemental forces, we see a dark mass, that glows dully. We can hardly believe that here is the origin of the explosions that shake the island, and are inclined to consider the demon of the volcano rather as a mischievous clown than a thundering, furious giant.

I went to the slope of the eastern crater to find a spot from which I might be able to photograph an eruption, and returned to camp just as the sun sank down in red fire, and the evening mists formed a white belt around the two black mountains. The tops of the craters shone red against a cool evening sky.