The China Sea directory - Sabrizain.org

CHAP. SI.5 ISLANDS AND SHOALS IN. 451
The Twins, or Pulo Mentegas, are two small round islands,
152 feet high, lying a little more than one mile north-eastward of Red
island, and one mile north-west of Pulo Bolombo.
Dangerous reef.—At three-quarters of a mile N.W. by W. of the
north Twin is the outer end of a dangerous coral reef 4 cables in extent,
dry at low water spring tides, and having from 10 to 17 fathoms around.
North Passage island touching or shut in with Red island, leads westward
of it.
Red Island (Pulo Gumeata), lying nearly 2 miles north-west
of Dolphin island, is of a triangular shape, about half a mile in extent, and
covered with trees. It is 256 feet high, and may be seen 15 miles.
Rocks.—The passage between Red and Dolphin islands ought not to
be attempted, for nearly in mid-channel lies a dangerous rook, awash at
low water spring tides ; the soundings near it being irregular, afford no
guide. Prom the centre of this rock the north-east end of Red island is in
line with the south peak of Great Carimon, and the centre of the Twins
bears N. f E.
A rocky patch, dry at low water, lies rather more than half a mile
W. by S. from the west end of Red island, with deep water aU round, and
between it and the island. From the centre of the patch, the north-west
bluff of Red island is in line with the south end of the North Twin
and the peak of False Durian is just within the east extreme of South
Passage island.
Rocky Islet.—Nearly half a mUe northward of Red island is a rock
with a tree on it, surrounded by rocks dry at low water, between which
and Red island the depths are 15 and 16 fathoms.
Middleburgll shoal, lying nearly mid-way between Red island
and the bank extending from Sabong island, is a reef of coral rocks, 300
yards in extent, dry about one foot at low water spring tides,* with 7 and 9
fathoms close to the rocks, and 17 to 20 fathoms about one cable off. Prom
the centre of the shoal, Passage islands are in line, their east extremes
bearing S.E. by S. ; and the rocky islet, with a tree on it, off the north end
of Red island, is nearly touching the North Twin.
Clearing mark.—The whole of South Passage island open eastward
or westward of North Passage island clears Middleburgh shoal.
The peak of False Durian touching the east side of North Passage island
leads in mid-channel, between it and the shoal half a mile westward of Red
island.
Islands between False Durian and Sabong Island.—
The western shore of Durian strait, from False Durian to the Carimons, is
Horeburgh.
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