d be so strong as to
prevent a vessel beating in, she may run up under easy sail to a bay on
the north-east end of Boston Island, and bring up in seven fathoms
opposite a white sandy beach, three-quarters of a mile off shore. There
is also excellent anchorage at the entrance to Spalding Cove, bringing
the western point of the promontory of Cape Donnington to bear north by
east, and the northernmost of Bicker's Island west by north, you will lay
in seven fathoms, muddy bottom. Having arrived at Bicker's Island and
bound for Boston Bay, stand directly over to the westward, passing the
south end of Boston Island, until you open the bay, when you may choose a
berth according to circumstances, and in any depth from ten to four
fathoms.

"The positions of the various points and islands are so correctly laid
down on Flinders' chart, that the skilful navigator will at once know his
exact situation by cross-bearings.

"The anchorage in Port Lincoln itself is not so safe as in Boston Bay,
and more difficult of access, especially in the winter months, when the
winds are strong from the south-west, and in the summer months it is
quite open to the north-east. In working up, a vessel may stand close in
to the eastern shore, and to within half a mile of the western, but
should not attempt to pass between the two Bicker's Islands, as there is
a reef running from the northernmost island nearly across to the other.

"Vessels from Adelaide, bound to Boston Bay, after arriving at Althorpe's
Island, should shape a course so as to pass between the Gambier Islands
and Thistle's Islands. There is a small island bearing west five miles
from the south end of Wedge Island, the largest of the Gambier group,
which is not laid down in Flinders, which should be left on the starboard
hand. Bring the highest part of Thistle's Island to bear west, distant
about six miles, and in twenty-two fathoms water, and a north-west
half-west course will carry you through midway between the Horse-shoe
Reef and the rocks which lay off the north-west end of Thistle's Island,
and in the direct track for Cape Donnington. The passage between the
reefs is about three miles wide, and ought not to be attempted in the
night, as the tides set directly across the channel. There is very good
anchorage on the north-east side of Thistle's Island, well sheltered
three-fourths of the year. Bring the rocks before-mentioned to bear
north-north-west, and two remarkable sand hills s