Masters of vessels should endeavour, if possible, to make the land in the neighbourhood of Cape Otway; but if the weather be thick they may know they are in the fairway of the Strait when they get into sixty fathoms, fine grey sand; in the same depth, with a rocky bottom, ships will be to the southward, and off the west side of King Island, which, as I have before described, is a rocky dangerous coast.  There is a doubtful position of a sunken rock, ten miles West 1/2 North of the south point, which is low and rocky, and in latitude 40 degrees 10 minutes South, longitude 143 degrees 58 minutes East; whilst Cape Wickham is in latitude 39 degrees 35 minutes South, longitude 143 degrees 59 1/2 minutes, East; and Cape Otway in latitude 38 degrees 51 minutes South, longitude 143 degrees 35 1/2 minutes East of Greenwich, considering Sydney, to which these longitudes refer, to be in 151 degrees 16 minutes East.

Various opinions have been expressed as to the best position for a lighthouse at this entrance of the Strait, some recommending Cape Wickham; others, Cape Otway.  I, however, hold to the latter, for this simple reason, that it will avoid bringing ships in the neighbourhood of the Harbinger Rocks and the western side of King Island.  If a light were erected on Cape Wickham, and a vessel running for it should be to the southward of her position, she would risk sharing the fate of the Cataraqui,* unless more caution were used than is generally the case, I regret to say, in merchant vessels.  Whereas, if the light were on Cape Otway, a ship to the southward of her position would have the Strait open to run through, and to the northward, would discover her error, by falling in with the land.  The lead, also, would inform the master that his ship was near it, there being 30 fathoms ten miles from the land thirty-five miles to the westward of Cape Otway; the trend of the coast besides is too westerly to make it a lee shore.

(Footnote.  In consequence of a letter of mine that appeared in the Times, the owners of the Cataraqui have communicated with me, stating that they have reason to believe the Beagle’s chart of Bass Strait was among those with which the ship was furnished, and that with regard to leads and lines she was well supplied.)

From the middle of the entrance between Cape Wickham and Cape Otway, in 57 fathoms, fine grey sand, and in latitude 39 degrees 13 minutes South, longitude 143 degrees 48 minutes East, the course to the entrance of Port Phillip, is North-East 1/2 North seventy miles; the soundings will be found, at first, to decrease rapidly, and in the parallel of Cape Otway the depth will be 47 fathoms, fine sand and shells.  Further particulars respecting the quality of the bottom off this part of the coast will be found in the first volume.