We had a lunch of jerked beef and hard poi in a stone corral, used of old time for the night-impounding of cattle being driven across the island. Then we skirted the rim for half a mile and began the descent into the crater. Twenty-five hundred feet beneath lay the floor, and down a steep slope of loose volcanic cinders we dropped, the sure-footed horses slipping and sliding, but always keeping their feet. The black surface of the cinders, when broken by the horses’ hoofs, turned to a yellow ochre dust, virulent in appearance and acid of taste, that arose in clouds. There was a gallop across a level stretch to the mouth of a convenient blow-hole, and then the descent continued in clouds of volcanic dust, winding in and out among cinder-cones, brick-red, old rose, and purplish black of colour. Above us, higher and higher, towered the crater-walls, while we journeyed on across innumerable lava-flows, turning and twisting a devious way among the adamantine billows of a petrified sea. Saw-toothed waves of lava vexed the surface of this weird ocean, while on either hand arose jagged crests and spiracles of fantastic shape. Our way led on past a bottomless pit and along and over the main stream of the latest lava-flow for seven miles. “Let us do it,” we said . . . in fun.!

“Socialism, of course.” It was a reputable traverse table, being none other than Bowditch’s. The rule was simple (as navigators’ rules go); I had made no error. I spent an hour over it, and at the end still faced the glaring impossibility of having sailed 24 miles, in the course of which I changed my latitude 3.5 miles and my longitude 25 miles. The worst of it was that there was nobody to help me out. Neither Charmian nor Martin knew as much as I knew about navigation. And all the time the Snark was rushing madly along toward Tanna, in the New Hebrides. Something had to be done.

We sailed out through the Golden Gate and set our course south toward that part of the Pacific where we could hope to pick up with the north-east trades. And right away things began to happen. I had calculated that youth was the stuff for a voyage like that of the Snark, and I had taken three youths—the engineer, the cook, and the cabin-boy. My calculation was only two-thirds off; I had forgotten to calculate on seasick youth, and I had two of them, the cook and the cabin boy. They immediately took to their bunks, and that was the end of their usefulness for a week to come. It will be understood, from the foregoing, that we did not have the hot meals we might have had, nor were things kept clean and orderly down below. But it did not matter very much anyway, for we quickly discovered that our box of oranges had at some time been frozen; that our box of apples was mushy and spoiling; that the crate of cabbages, spoiled before it was ever delivered to us, had to go overboard instanter; that kerosene had been spilled on the carrots, and that the turnips were woody and the beets rotten, while the kindling was dead wood that wouldn’t burn, and the coal, delivered in rotten potato-sacks, had spilled all over the deck and was washing through the scuppers. When we dropped anchor, lowered a small boat into the water, and started ashore, the Nature Man joined us. Now, thought I, I shall be pestered to death by this crank. Waking or sleeping I shall never be quit of him until I sail away from here. And now to the particular physics of surf-riding. Get out on a flat board, six feet long, two feet wide, and roughly oval in shape. Lie down upon it like a small boy on a coaster and paddle with your hands out to deep water, where the waves begin to crest. Lie out there quietly on the board. Sea after sea breaks before, behind, and under and over you, and rushes in to shore, leaving you behind. When a wave crests, it gets steeper. Imagine yourself, on your hoard, on the face of that steep slope. If it stood still, you would slide down just as a boy slides down a hill on his coaster. “But,” you object, “the wave doesn’t stand still.” Very true, but the water composing the wave stands still, and there you have the secret. If ever you start sliding down the face of that wave, you’ll keep on sliding and you’ll never reach the bottom. Please don’t laugh. The face of that wave may be only six feet, yet you can slide down it a quarter of a mile, or half a mile, and not reach the bottom. For, see, since a wave is only a communicated agitation or impetus, and since the water that composes a wave is changing every instant, new water is rising into the wave as fast as the wave travels. You slide down this new water, and yet remain in your old position on the wave, sliding down the still newer water that is rising and forming the wave. You slide precisely as fast as the wave travels. If it travels fifteen miles an hour, you slide fifteen miles an hour. Between you and shore stretches a quarter of mile of water. As the wave travels, this water obligingly heaps itself into the wave, gravity does the rest, and down you go, sliding the whole length of it. If you still cherish the notion, while sliding, that the water is moving with you, thrust your arms into it and attempt to paddle; you will find that you have to be remarkably quick to get a stroke, for that water is dropping astern just as fast as you are rushing ahead.