While S. and I were visiting the glacier gorge, the two other members of the party were exploring the last portion of the inlet named on the chart the Lobo Arm. It terminated on low ground, on which stood the frame of an Indian hut, and pieces of timber had been laid down to form a portage for canoes. A few steps showed that the low ground extended only for some 160 yards, while beyond this was another piece of water which had the appearance of an inland lake, some three miles long and a mile wide. The portage end of the water was vaguely shown on the chart of Port Churruca, but there was no indication of anything of the kind on the general map of Desolation Island. Our curiosity was mildly excited, and we all visited the place; one of our number remarked that “the water was slightly salt,” another that there “were tidal indications,” a third that “from higher ground the valley seemed to go on indefinitely.” At last the map was again and more seriously examined, and it was seen that, while there were no signs of this water, there were on the opposite side of the island the commencements of two inlets from the open sea, neither of which had been followed up: the more northerly of these was immediately opposite Port Churruca. “If,” we all agreed, “our lake is not a lake at all, but a fiord”—and to this every appearance pointed—“it is in all probability the termination of this northern inlet, and Desolation Island is cut in two except for the small isthmus with the portage.” Then a great ardour of exploration seized us, Mr. Corry fell a victim to it, Mr. Gillam fell likewise, and we refused to be depressed by Mr. Ritchie’s dictum that it had “nothing to do with serious navigation.” We wrestled with a conscientious conviction that it had certainly nothing to do with Easter Island, and we ought to go forward at the earliest possible moment, but the exploration fever conquered. We discussed the possibility of getting the motor-launch over the portage, and were obliged reluctantly to abandon it as too heavy, but it was concluded that it would be quite feasible with the cutter.