We walked a mile over a raised macadamized road of uniform width; a road paved with flat stones and exhibiting in its every detail a considerable degree of engineering skill. Some say that that wise old pagan, Kamehameha I planned and built it, but others say it was built so long before his time that the knowledge of who constructed it has passed out of the traditions. In either case, however, as the handiwork of an untaught and degraded race it is a thing of pleasing interest. The stones are worn and smooth, and pushed apart in places, so that the road has the exact appearance of those ancient paved highways leading out of Rome which one sees in pictures.
The object of our tramp was to visit a great natural curiosity at the base of the foothills--a congealed cascade of lava. Some old forgotten volcanic eruption sent its broad river of fire down the mountain side here, and it poured down in a great torrent from an overhanging bluff some fifty feet high to the ground below. The flaming torrent cooled in the winds from the sea, and remains there to-day, all seamed, and frothed and rippled a petrified Niagara. It is very picturesque, and withal so natural that one might almost imagine it still flowed. A smaller stream trickled over the cliff and built up an isolated pyramid about thirty feet high, which has the semblance of a mass of large gnarled and knotted vines and roots and stems intricately twisted and woven together.
We passed in behind the cascade and the pyramid, and found the bluff pierced by several cavernous tunnels, whose crooked courses we followed a long distance.
Two of these winding tunnels stand as proof of Nature's mining abilities. Their floors are level, they are seven feet wide, and their roofs are gently arched. Their height is not uniform, however. We passed through one a hundred feet long, which leads through a spur of the hill and opens out well up in the sheer wall of a precipice whose foot rests in the waves of the sea. It is a commodious tunnel, except that there are occasional places in it where one must stoop to pass under. The roof is lava, of course, and is thickly studded with little lava-pointed icicles an inch long, which hardened as they dripped. They project as closely together as the iron teeth of a corn-sheller, and if one will stand up straight and walk any distance there, he can get his hair combed free of charge.