We took an interesting walk on shore, which we greatly enjoyed.  We visited a curious natural cavern called Kent's Cavern.  The scenery round the entrance is thickly-wooded and wild in the extreme, probably just as it has been for centuries.  We were told that it runs for upwards of six hundred feet into the bowels of the earth, and has numerous branches and ramifications.  We had brought a guide and lights with us, so that we could explore it without risk.  We could see, imbedded in the rock, bones of animals which at some remote period made it their abode; and naturalists, who dig them out, say that they belong to tribes which are only found in tropical climates.  Our guide showed us that there are three distinct layers or floors of earth in the cavern.  In the topmost are found beads and various instruments manufactured by the Saxons, as well as the bones of foxes and badgers. In the next strata are the bones of elephants, of rhinoceroses, of lions and hyenas, of wolves and elks.  In the third layer are the bones of bears, which must have been of great size, as also of a nondescript animal said to be between a lion and a bear.  Curiously enough, judging from the remains found in them, the branches on one side indicate the favourite habitation of elephants, while on the other, packs of wolves were in the habit of taking up their abode.  Probably the more savage beasts of prey dragged in the carcases of the creatures they had killed; and they in their turn dying, left their bones mingled with the others. We were told that flint knives were found along with the bones of animals which for ages have become extinct, pointing to a period when the country must have been inhabited by races of men as uncivilised as the South Sea Islanders.  Possibly it might have been at a period antecedent to the flood, when our island was joined to the Continent.