the arched opening to a large cave in the south bank; the mountain-side is one mass of rock covered with the unbroken forest; and the entrance to this cave is just on the upper wall of the south bank's promontory; so, being sheltered from the current here, we rest and examine it leisurely. The river runs into it, and you can easily pass in at this season, but in the height of the wet season, when the river level would be some twenty feet or more above its present one, I doubt if you could. They told me this place is called Boko Boko, and that the cave is a very long one, extending on a level some way into the hill, and then ascending and coming out near a mass of white rock that showed as a speck high up on the mountain.
If you paddle into it you go "far far," and then "no more water live," and you get out and go up the tunnel, which is sometimes broad, sometimes narrow, sometimes high, sometimes so low that you have to crawl, and so get out at the other end.
One French gentleman has gone through this performance, and I am told found "plenty plenty" bats, and hedgehogs, and snakes. They could not tell me his name, which I much regretted. As we had no store of bush lights we went no further than the portals; indeed, strictly between ourselves, if I had had every bush light in Congo Français I personally should not have relished going further. I am terrified of caves; it sends a creaming down my back to think of them.
We went across the river to see another cave entrance on the other bank, where there is a narrow stretch of low rock-covered land the foot of the mountains, probably under water in the wet season. The mouth of this other cave is low, between tumbled blocks of rock. It looked so suspiciously like a short cut to the lower regions, that I had less exploring enthusiasm about it than even about its opposite neighbour; although they told me no man had gone down "them thing." Probably that much-to-be-honoured Frenchman who explored the other cave, allowed like myself, that if one did want to go from the Equator to Hades, there were pleasanter ways to go than this. My Kembe Island man said that just hereabouts were five cave openings, the two that we had seen and another one we had not, on land, and two under the water, one of the sub-fluvial
