These algae are a genuine prodigy of creation, one of the wonders of world flora. This family produces both the biggest and smallest vegetables in the world. Because, just as 40,000 near-invisible buds have been counted in one five-square-millimeter space, so also have fucus plants been gathered that were over 500 meters long! We had been gone from the Nautilus for about an hour and a half. It was almost noon. I spotted this fact in the perpendicularity of the sun’s rays, which were no longer refracted. The magic of these solar colors disappeared little by little, with emerald and sapphire shades vanishing from our surroundings altogether. We walked with steady steps that rang on the seafloor with astonishing intensity. The tiniest sounds were transmitted with a speed to which the ear is unaccustomed on shore. In fact, water is a better conductor of sound than air, and under the waves noises carry four times as fast. Just then the seafloor began to slope sharply downward. The light took on a uniform hue. We reached a depth of 100 meters, by which point we were undergoing a pressure of ten atmospheres. But my diving clothes were built along such lines that I never suffered from this pressure. I felt only a certain tightness in the joints of my fingers, and even this discomfort soon disappeared. As for the exhaustion bound to accompany a two-hour stroll in such unfamiliar trappings—it was nil. Helped by the water, my movements were executed with startling ease. Arriving at this 300-foot depth, I still detected the sun’s rays, but just barely. Their intense brilliance had been followed by a reddish twilight, a midpoint between day and night. But we could see well enough to find our way, and it still wasn’t necessary to activate the Ruhmkorff device. Just then Captain Nemo stopped. He waited until I joined him, then he pointed a finger at some dark masses outlined in the shadows a short distance away. “It’s the forest of Crespo Island,” I thought; and I was not mistaken. CHAPTER 17 An Underwater Forest WE HAD FINALLY arrived on the outskirts of this forest, surely one of the finest in Captain Nemo’s immense domains. He regarded it as his own and had laid the same claim to it that, in the first days of the world, the first men had to their forests on land. Besides, who else could dispute his ownership of this underwater property? What other, bolder pioneer would come, ax in hand, to clear away its dark underbrush? This forest was made up of big treelike plants, and when we entered beneath their huge arches, my eyes were instantly struck by the unique arrangement of their branches—an arrangement that I had never before encountered.