ty of COLLIER'S BAY.

MACLEAY ISLES lie in a North by West direction, and are eight miles in
extent; the principal and highest island is near the south end of the
group; those to the northward are small and straggling. The centre of the
highest is in latitude 15 degrees 57 minutes, and longitude 123 degrees
42 minutes.

CAFFARELLI ISLAND was seen by the French. Its summit is in latitude 16
degrees 2 minutes 25 seconds, and longitude 123 degrees 18 minutes 35
seconds. It is the north-westernmost of a range of islands, extending in
the direction of North 60 degrees West; among which Cleft Island, so
named from a remarkable cleft or chasm near its north end, and DAMPIER'S
MONUMENT, are conspicuous: the latter is a high lump. This range is
separated from one of a similar nature, and extending in a like direction
to the eastward, by a strait from three to four miles wide, and from
fifteen to twenty deep.

Fourteen miles North 68 degrees West from the summit of Caffarelli Island
is BRUE REEF, a circular patch of rocks of about a mile in diameter;
three miles to the north-east of which we had irregular soundings,
between thirty-eight and forty-five fathoms on a rocky bottom. The reef
is in 15 degrees 57 minutes South, and 123 degrees 4 minutes 45 seconds
East.

Six miles south of Caffarelli Island, is a rocky island, surrounded by a
reef; and eight miles farther are several small rocky islands, forming
the north extremity of a range, which, extending to the South by East for
ten miles, form the eastern side of Sunday Strait, which is the best, and
in fact the only safe communication with the deep opening between Point
Cunningham and the islands to the eastward. Between this strait and Point
Swan, a distance of eleven miles, the space is occupied by a multitude of
islands and islets, separated from each other by narrow and, probably, by
deep channels, through which the tide rushes with frightful rapidity.
Sunday Strait is more than four miles wide, and appears to be free from
danger. The tide sets through it at the rate of four or five miles an
hour, and forms strong ripplings, which would be, perhaps, dangerous for
a boat to encounter. The vessel was whirled round several times in
passing through it; but a boat, by being able to pull, might in a great
measure avoid passing through them.

CYGNET BAY is formed between the islands and Point Cunningham; it is
fronted by a bank, over which the least water that we found was two