[CHAPTER VII.]
EN ROUTE TO THE TERRACES.
Over the mountains—Rauporoa Forest—The hotete—Tikitapu—Rotokakahi—Te Wairoa—The natives—Waituwhera Gorge—The boat—A distinguished traveller—Sophia—Lake Tarawera—Mount Tarawera—Te Ariki—Te Kaiwaka.
The terraces, which are the most marvellous of all the wonders of the lakes, lie about twenty miles as the crow flies, in a south-easterly direction from Ohinemutu. From the latter place to Te Wairoa the distance is about thirteen miles; the other part of the journey being by water across Lake Tarawera.
I found the route to be one of the most beautiful that I had ever travelled in any part of the world. Leaving Ohinemutu mounted on a good horse, my road lay along the southern shore of Lake Rotorua and thence over the mountains, through which it wound by a gradual ascent, formed by a zigzag cutting. A short distance above the mountain pass on the right was a bold gorge, formed between two fern-clad mountains, whose precipitous sides swept abruptly into the valley below, which was covered with low, round-topped hills. Through this gorge a grand view was obtained of the huge dome-shaped form of Hapurangi, farther in the distance the flat-topped, forest-clad summit of Mount Horohoro stood boldly out against the sky. Beyond this point the road passed through a fern-clad country, with mountains in the background, and from the midst of which the grand serrated peak of Mount Tarawera loomed like a grim colossus above the surrounding heights. After passing over open, undulating plains, the road entered the Rauporoa forest, one of the grandest gardens of primeval vegetation in the North Island. Whilst the trees here attained to an enormous size and the shrubs to a marvellous luxuriance, many of the rarest and most beautiful ferns of the country formed a dense undergrowth, which covered every foot of ground like a variegated carpet. Countless orchids and lichens, and creeping plants, struggled to the tops of the tallest trees which spread their giant branches over the roadway in an arched canopy of vivid green, and appeared to touch the sky as they mounted upwards to the very summits of the steep mountains which rose on every side, beneath the thick impenetrable growth which covered their rugged slopes without a single break.
On my return from the terraces I rode through this grand forest alone by night. The stars shone brightly, the moon lit up the giant trunks of the trees in a soft, silvery sheen, and cast deep shadows that flitted about like spectres in the gloom; the twisting vines hung in fantastic coils overhead, and countless myriads of glowworms[29] sparkled and glittered in a thousand brilliant coruscations on every side, on the trees, among the rocks, and in the ferns, and in a way which reminded me of the gorgeous fireflies I had often admired when in the jungles of Ceylon.
It was while admiring the beauties of the Rauporoa forest that I came across a specimen of what I may term one of nature's most paradoxical works; it was the hotete—the grub of the large night-butterfly—the Sphæria Robertsi, or "vegetating caterpillar."
To give an idea of this singular curiosity, one must imagine a grub or caterpillar from two to three inches long, with a dark brown body, in appearance not unlike a piece of dried leather, while the legs, the feet, the eyes, and the mouth are perfect in every detail, as if the insect had been carefully stuffed and preserved. But most curious of all, from the tail end there shoots out the thin stem of a plant from six to eight inches long, perfectly rounded and smooth in form, with a rounded point, and of the same colour as the caterpillar. To explain this, it is clear that the grub, when alive, eats the seed of some unknown plant or tree, and which, germinating in its inside, when the insect buries itself in the ground for the purpose of changing into a chrysalis, gradually kills it, as it grows and feeds, as it were, upon the vitality of its body.
The most remarkable feature, however, in the whole metamorphosis is not that the grub eats the seed, nor that it germinates within its body, but that the process should go on whilst the outward form of the grub remains intact, as if it underwent during the time some peculiar mode of preservation. The grub is found in this state underground, with the plant growing above the surface. It should be remarked that the latter has neither branches nor leaves, but partakes more of the character of a creeping vine. Some of the natives are of opinion that it is the seed of the rata which the grub eats in this way, but the question appears to be undecided.
When I suddenly emerged from the deep gloom of the forest, the azure waters of Tikitapu, or the "Blue Lake," came suddenly before my view with the most enchanting effect. Nearly circular in form, and fringed below the level of the road with a dense growth of vegetation, the tall mountains rose up above it on one side to a height of 800 feet, and cast their dark shadows upon its tranquil bosom, which lay shining in the sunlight, without a breath of wind to stir the smooth and deeply blue expanse of water. It is only about half a mile long, but for calm, picturesque beauty, it is one of the most attractive sights of this wondrous region. The road skirts it on its eastern side to its farther end, where a narrow saddle, falling from a range of bold hills, divides it from Rotokakahi, or the "Green Lake."