1802.
February.
Tuesday 16.
the eastern shore. At eight o'clock we found ourselves in a bay, whose width, from the outer western point of entrance, named Point Sir Isaac, to the shore on the east side, was near three leagues. It extended also far in to the south-south-east; but the depth diminished, in less than half an hour, to 4 fathoms, although the head of the bay was still six or seven miles distant. We were then two miles from the eastern shore, with Point Sir Isaac bearing N. 67° W.; and hoping to find deeper water in that direction, hauled to the westward; but coming into 3 fathoms, were obliged to tack, and the wind veering round from the sea, we worked to windward in the entrance of the bay.
The situation of Point Sir Isaac is 34° 27′ south, and from observations of the moon with stars on each side, in 135° 13′ east; but by the time keepers corrected, which I prefer, the longitude is 135° 10′ east. The basis of the point seemed to be granitic, with an upper stratum of calcareous rock, much similar to the neighbouring isles of the Investigator's Group. Its elevation is inconsiderable, and the surface is sandy and barren, as is all the land near it on the same side. The large piece of water which it shelters from western winds, I named Coffin's Bay, in compliment to the present vice-admiral sir Isaac Coffin, Bart.; who, when resident commissioner at Sheerness, had taken so zealous a part in the outfit of the Investigator. Coffin's Bay extends four or five leagues to the south-eastward from Point Sir Isaac; but I do not think that any stream, more considerable than perhaps a small rill from the back land, falls info it, since sandy cliffs and beach were seen nearly all round. On the east side of the entrance, the shore rises quickly from the beach to hills of considerable height, well covered with wood. The highest of these hills I call Mount Greenly: its elevation is between six and eight hundred feet, and it stands very near the water side.
Many smokes were seen round Coffin's Bay, and also two parties of natives, one on each side; these shores were therefore better inhabited than the more western parts of the South Coast;