Having fine pleasant weather on the 23d, I sent Lieutenant Pickersgill in the cutter to explore the east side of the sound, and went myself in the pinnace to the west side, with an intent to go round the island, under which we were at anchor (and which I shall distinguish by the name of Shag Island), in order to view the passage leading to the harbours Mr Pickersgill had discovered the day before, on which I made the following observations. In coming from sea, leave all the rocks and islands, lying off and within York Minster, on your larboard side; and the black rock, which lies off the south end of Shag Island, on your starboard; and when abreast of the south end of that island, haul over for the west shore, taking care to avoid the beds of weeds you will see before you, as they always grow on rocks; some of which I have found twelve fathoms under water; but it is always best to keep clear of them. The entrance to the large harbour, or Port Clerke, is just to the north of some low rocks lying off a point on Shag Island. This harbour lies in W. by S., a mile and a half, and hath in it from twelve to twenty-four fathoms depth, wood and fresh water. About a mile without, or to the southward of Port Clerke, is, or seemed to be, another which I did not examine. It is formed by a large island which covers it from the south and east winds. Without this island, that is, between it and York Minster, the sea seemed strewed with islets, rocks, and breakers. In proceeding round the south end of Shag Island, we observed the shags to breed in vast numbers in the cliffs of the rock. Some of the old ones we shot, but could not come at the young ones, which are by far the best eating. On the east side of the island we saw some geese; and having with difficulty landed, we killed three, which, at this time, was a valuable acquisition. About seven, in the evening, we got on board, where Mr Pickersgill had arrived but just before. He informed me that the land opposite to our station was an island, which he had been round; that on another, more to the north, be found many _terns_ eggs; and that without the great island, between it and the east-head, lay a cove in which were many geese; one only of which he got, beside some young goslings.