After passing the latter, avoid a low dangerous rock, that bears from it North 8 degrees East five miles and three-quarters, and from 1st Peak South 85 degrees West. To avoid this in the night, pass close round Number 3, when, its situation being known, you can easily avoid it.
The channel is safe on either side of the Percy Isles, but that to the westward of them, being better known, is therefore recommended as the safest. Then steer either over the Mermaid’s or Bathurst’s tracks, which will carry a ship round the projections of the coast as far as Cape Grafton, as far as which, if the weather is fine, there can be no danger of proceeding through the night; but it must be recollected, that at Cape Grafton the coral reefs approach the coast, and, consequently, great care must be used.
On reaching Fitzroy Island, round it at a mile off shore, and, when its north end bears West, steer North-West 1/2 North for thirty-five miles; you will then be a league to the South-East of a group of low isles; if it should be night when you pass them, come no nearer to them than fourteen fathoms. In steering this course, great care should be taken, not to go too much to the eastward to avoid the reef which the Tamar saw. (See above.)
If the moon is up the islets will be readily distinguished, but otherwise it would be more prudent to wait for daylight. This course will carry a ship over two of my tracks, and the soundings will be in seventeen, eighteen, and nineteen fathoms. From the low isles direct your course for the Hope Islands, which bear from the former North 18 degrees West thirty-eight miles, but the course had better be within that line, to avoid some reefs in latitude 15 degrees 51 minutes: pass, therefore, within five miles of Cape Tribulation, when a direct course may be steered either to the eastward or westward of the Hope Isles. The better route will be within the western Hope, and along its reef at the distance of three-quarters of a mile, by which you will avoid reef a. When you are abreast of its north end, steer North by West westerly for twenty-eight miles; this will carry you to Cape Bedford which you may round at from one to three or four miles. You will see in your way, at three miles and a half from the north end of the Hope Reef, reef b; and at fifteen miles from it you will be abreast of e; and five miles farther on you will pass Captain Cook’s Turtle Reef, which has a dry sand at its north end. These three reefs will be to the eastward of your course.
The current sets to the North-West, so that your course must be directed accordingly. In coasting along the shore, you will discern the summits which are marked on the chart. The high conical hill, on the south side of the entrance of Endeavour River, is Mount Cook, bearings of which, crossed with the summit of Cape Bedford, or any of the particularized summits or points will give the vessel’s place, by which the effects of the current, which is generally very slight, will be perceived: on one occasion we found a current in the space between the Endeavour Reef and Turtle Reef of two miles an hour to the North-West.