Whilst the ship continued here at anchor, the commodore, attended by some of his officers, went in a boat to examine a bay which lay to the northward, and they afterwards ranged all along the eastern side of the island. And in the places where they put on shore in the course of this expedition, they generally found the soil to be extremely rich, and met with great plenty of excellent water. In particular, near the N.E. point of the island they discovered a natural cascade, which surpassed, as they conceived, everything of this kind which human art or industry hath hitherto produced. It was a river of transparent water, about forty yards wide, which rolled down a declivity of near a hundred and fifty in length. The channel it fell in was very irregular, for it was entirely composed of rock, both its sides and bottom being made up of large detached blocks; and by these the course of the water was frequently interrupted, for in some parts it ran sloping with a rapid but uniform motion, while in others it tumbled over the ledges of rocks with a perpendicular descent. All the neighbourhood of this stream was a fine wood; and even the huge masses of rock which overhung the water, and which, by their various projections, formed the inequalities of the channel, were covered with lofty forest trees. Whilst the commodore with those accompanying him were attentively viewing this place, and were remarking the different blendings of the water, the rocks, and the wood, there came in sight (as it were still to heighten and animate the prospect) a prodigious flight of mackaws, which, hovering over this spot, and often wheeling and playing on the wing about it, afforded a most brilliant appearance by the {203} glittering of the sun on their variegated plumage; so that some of the spectators cannot refrain from a kind of transport when they recount the complicated beauties which occurred in this extraordinary waterfall. In this expedition which the boat made along the eastern side of the island, though they discovered no inhabitants, yet they saw many huts upon the shore, and great heaps of shells of fine mother-of-pearl scattered up and down in different places. These were the remains left by the pearl-fishers from Panama, who often frequent this place in the summer season; for the pearl oysters, which are to be met with everywhere in the bay of Panama, do so abound at Quibo, that by advancing a very little way into the sea you might stoop down and reach them from the bottom. They are usually very large, and out of curiosity we opened some of them with a view of tasting them, but we found them extremely tough and unpalatable. And having mentioned these oysters and the pearl-fishery, I must beg leave to recite a few particulars relating to that subject.