Both on this and others of the group there were a few small trees and a sprinkling of brushwood.
We did not notice any of the singular detached hills seen at Port Darwin, and the greatest elevation any of the land in the neighbourhood attained was 200 feet; neither did we observe any primary rocks.
The observations were made at the South-East point of Quail Island, which by them is placed in latitude 12 degrees 30 9/10 minutes South, and longitude 1 degree 42 1/4 minutes West of Port Essington.

The almost insulated character of this part of the coast, and the quantity of soundings the openings required detained us until the 6th of October, when we passed out on the western side of the large reef in the centre of the entrance, which is the proper one, and received the name of West Channel.

The western entrance point of Bynoe's Harbour, bearing South 15 degrees East, leads through it.

This guide is only, however, of service to a certain distance within the entrance, as it leads over a small patch that dries at low-water, distant two and a half miles from the above-mentioned point on the same bearing.

To avoid this danger, it is therefore necessary to haul over towards Quail Island, when the highest hummock on it bears South-West 1/2 West.