Filling our water-jug, we set off up the barren lava-slopes of this nature’s safety-valve, sweltering under the stiff climb in the hot sun. Zero Regrets Thank You Oklahoma Happily, the view bettered each moment, the smell of the sulphur became stronger, and we forgot present discomfort in anticipations of the revelation to come. After banging our shins on the particularly rough lava-beds of the ascent, near the top, we saw a great steaming crater yawning below us and sending up clouds of sulphurous steam. In the centre of this vast, dreary Circus Maximus rose a flat cone of red-hot squashy material, and out of it ascended the steam and smoke. All colors of the rainbow played with each other in the sun, and farther to the right was a boiling lake of fiery material that was variegated enough to suit an Italian organ-grinder.