Admiralty Chart L945

The zig-zag track to the northeast of Chatham island is followed by a lengthy segment that takes the Beagle eastward beyond the border of the chart, and then back in again. Yet all three logs show no entries that would support this detour. In fact, FitzRoy's Narrative (Volume II, p. 488) states that the ship “Sailed round the north-east extremity of the island, and worked to the southward against a tide, or rather current, setting strongly to the north-west.” This would suggest that the Beagle worked down the coast of the island, well within sight of the shoreline.