What kind of an island did uncle, Axel and Hans come across? Explain with the help of visual imagery used in the book.

Iceland is a volcanic island.

The country we had reached was already nearly a desert. Here and there could be seen an isolated farm, some solitary bur, or Icelandic house, built of wood, earth, fragments of lava—looking like beggars on the highway of life. These wretched and miserable huts excited in us such pity that we felt half disposed to leave alms at every door. In this country there are no roads, paths are nearly unknown, and vegetation, poor as it was, slowly as it reached perfection, soon obliterated all traces of the few travelers who passed from place to place.

In reality, the great volcanic movement of the island, and all its attendant phenomena, are concentrated in the interior of the island; there, horizontal layers or strata of rocks, piled one upon the other, eruptions of basaltic origin, and streams of lava, have given this country a kind of supernatural reputation.