It being my intention to explore the head of Broad Sound with the brig and whale boat, a situation where tents could be fixed and an easy communication held with the ship during my absence, was the object now sought; and I immediately went with a party of the gentlemen, to ascertain how far Upper Head was calculated for our purpose. We landed at half flood, without difficulty; and on ascending the hill, obtained a view of the Sound which exceeded my expectations. Amongst the many bearings taken, were the following fixed points in the survey. Pine Mount, of Shoal-water Bay, S. 84° 38' E. Pier Head, the western part, N. 36 7 E. West hill, the top, N. 28 5 W. Flat Isles, the 4th, station there, N. 39 53 W. The breadth of the Sound, from Upper Head over to the inner end of Long Island, appeared to be three leagues, but it contracted upwards, and assumed the same river-like form as Shoalwater Bay; and it was to be feared, from the mangrove shores and muddiness of the water, that it would terminate in the same manner. No shoals could be then distinguished; but towards low water in the evening I again ascended the hill, and saw to my regret, that the upper parts were mostly occupied with banks of mud and sand, many of which were dry, and extended downward past the inner entrance of Thirsty Sound. Amongst the banks were various channels; but that of about two miles wide where the ship lay, was by far the most considerable. The small fifth opening, close on the west side of Upper Head, ran some miles in the low land towards the foot of a ridge of hills, lying three or four leagues at the back of the shore; but the greater part of this inlet was also taken up by mud banks, and the borders covered with mangroves. There was no fresh water at Upper Head, nor did I see any prospect of obtaining wherewith to complete the holds of the two vessels before leaving the coast; unless it were at a place a little higher up on the same side, to which the appearance of another opening between two hills, induced me to move the ship. MONDAY 13 SEPTEMBER 1802 Next morning, when the flood made, we drifted upwards, with the Lady Nelson and a boat sounding ahead. After advancing three miles the brig suddenly took the ground, and we dropped a stream anchor; but in swinging to it, the ship was caught upon a bank of quick sand in eleven feet; and the tide running strong upon the broad side, it made her heel in a manner to excite alarm. The sails were immediately clewed down, and the top-gallant yards struck; and it appearing that the stream anchor allowed the ship to drive further up the bank as the tide rose, the best bower was let go, and then she righted and swung to the tide. The Lady Nelson also got off safe; but a part of the after sliding keel was carried away.