THE HONGKONG GOVERNMENT GAZETTE, 6TH JULY, 1878.
343
Anchorage.—The best anchorage for large vessels is near the head of Nama ura, in 10 fathoms water, 24 cables from the shore, with the peak of O sima just open eastward of the Cone rock, bearing N. by W. W., a patch of red cliff on the west shore of the bay, just north of Nama village, W. by S. 1 S., and Joss point N.E. Small vessels could anchor to the eastward of this position with Tsubo gashi (the 10 feet rock north of the entrance) in line with a black point on the east side of the bay N. by W. W., and the point on the south shore eastward of Nama village S.W. by W.
Hira sima, nearly 2 miles from the east extreme of Nakadori sima, and 4 miles westward of Yenoi sima, is 24 miles long and 14 miles wide, having near the centre a peak 663 feet high, sloping gradually to the coast on its north and west sides; to the southward of this peak there are remarkable ridges of cliffs, and over its north-east point is a prominent peak 325 feet high, rising perpendicularly from the sea on its eastern side.
The western side of Hira sima is steep-to, and trends in a north-westerly direction 2 miles from Ai-saki the west point, to Kuro saki the north point of the island; the eastern side of Hira sima from Komo-no-saki the south-west, to Tatsu saki the north-east extreme of the island, a distance of 24 miles, is irregular, with a few off-lying dangers and islets.
Haidomari bay, on the north-east side of Hira sima, between Kuro saki and Tatsu saki, is 6 cables deep; it is however, only suitable for junks.
Komoda bay, situated on the south-west side of the island, between Ai-saki and Komo-no-saki, affords protection to small vessels from north and easterly winds; near the centre of this bay lies a small wooded islet, named Kojima; vessels should anchor to the south-eastward of this islet, the best berth being in 10 fathoms, with Ai-saki bearing N.W. by W. W., and the summit of Nanori rock S.S.W. W. Eastward of Kojima on the northern shore of the bay is an inlet in which junks lie securely; and load inferior coal obtained from the mines.
From Kamo-no-saki rocky ledges extend in a south-westerly direction for 14 cables; the shore to the eastward of this point for a distance of half a mile is foul, and should not be approached nearer than 3 cables.
Nanori is a remarkable rock 92 feet high, 6 cables to the south-westward of Komo-no-saki, having rocky ledges surrounding it, those off its southern extreme extending nearly 2 cables. The north extreme of Nanori is foul, a depth of 3 fathoms being found at 13 cables to the northward; immediately outside the shelving rocks on either side however, there is deep water.
In the centre of the channel between Nanori and Komo-no-saki the depths are from 12 to 20 fathoms; the centre of Shimomu sima in line with Ai-saki bearing N.N.W. W. will lead through in the deepest water.
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Sakize is a cluster of conspicuous islets extending nearly a mile from the eastern shore of Hira sima; these islets should be passed at not less than 2 cables distant. About midway between Sakize and Tatsu saki, and nearly half a mile from the shore, lies a rock that dries 3 feet at low water. Tatsu saki bearing N.N.W. leads to the eastward of this rock.
The channels on either side of Hira sima are navigable; the channel between Hira sima and Nakadori sima is clear of danger, but in the channel between Hira sima and Yenoi sima are the Saracen reefs situated to the southward of Yenoi sima and the foul ground to the south-westward of Kuro sima (a small islet 120 feet high). The eastern shore of Hira sima is the clearer side of this channel.
Directions. If approaching Hira sima from the south-eastward keep Tatsu saki in line with the south end of Nosaki sima, bearing N.W. N., which will lead nearly one mile westward of the Saracen reefs and half a mile from the foul ground southward of Kuro sima; and when the summits of Yenoi sima and Kuro sima are in line bearing N.E. by E.
E., a vessel
course to the northward to pass between Hira sima and Iwoze, a rock 30 feet high, the westernmost north-west of Yenoi sima.
of a group ly
If bound
between Na
when Kojima
Naru
bay from the eastward keep about half a mile from the Hira sima coast, and enter the channel and amo-no-saki, with Ai-saki in line with the centre of Shimomu-sima bearing N.N.W. § W.,
of 2 to 5 fathon extending
༤ ་རྞ ་ ་
u on the south-west side of Naru sima in Naru seto (Kuga channel), has a shoal ...rth-west entrance point, and terminating in a knoll of 12 feet water near the middle
of the entranceween this knoll and Observatory island (south-east side of entrance) there is a depth of 15 fathoms in mid-channel.
At one cable south of Observatory island a shoal with 9 feet water extends 1 cables from the shore, having near the outer edge a depth of 13 fathoms.
The north-
A rock with 3 feet water lies three-quarters of a mile S.S.W. from the southernmost point of Naru sima east extreme of Hisakajima (Kuga sima) in line with Szuyechi, an islet 72 feet high, close to the south end of Mia sima, bearing N.W. by N. leads to the westward; and an islet off the north point of Kochi-domori-ura in line with the east extreme of Shinto ga sima, an islet 146 feet high, near the south-east shore of Naru sima N.N.E. E. leads to the eastward of this rock.
Oldham rock, covered at high water springs, lies nearly 14 miles E. by N. from Sawo saki, the south extreme, of Naka- dori. An islet 78 feet high, half a mile to the westward of Sawo saki in line with it, bearing West, leads to the southward; and Tazaki the north point of Kabo sima in line with Sawo saki W. by S. & S. leads to the northward of Oldham rock.
Tides. It is high water full and change in the East bay (Ojika) at 8h. 40m.; springs rise 104 feet, neaps 2 to 4 feet. The duration of the tidal streams in the north part of Goto islan is is nearly equal; the main direction of the flood is to the northward and ebb to the southward.
A portion of the flood stream on the east side of the islands passes through the channels south and north of Nosaki sima. On the west side the flood stream runs in a north-easterly direction, and on nearing the islands in the vicinity of Ojika, it diverges into two parts; the eastern part flowing towards the centre of the channel between Ojika and Nosaki sima, is met by the stream from the south-eastward through the channel south of Nosaki sima, thence these streams run together to the northward, and when in Ojika seto are joined by the stream flowing to the north-westward through the channel on the north side of Nosaki sima; the whole body of the stream then runs for the narrow channel between Tera sima and Uku sima, where its velocity at times is very great; a small portion, however, flows to the westward between No-sima and Tera sima. A portion of the stream on the west side of the islands sets towards the western entrance to Ojika seto, where it is met by the small portion of the eastern stream, causing heavy tide rips and overfalls.
The ebb splits on the west side of Uku sima, one part running to the south-westward past the islands off the west side of Ojika, the other to the south-eastward through the narrow channel between Uku sima and Tera sima, thence towards the north end of Nosaki sima, where it divides and runs in the directions of the channels on either side of that island; on the west side of Nosaki sima it again splits, one part running to the south-eastward through the channel on the south side of Nosaki sima, the other to the south-westward along the west side of Nakadori sima, uniting with the stream that is going in the same direction on the west side of Ojika.
In the vicinity of Hira sima the streams run through the channels at the rate of 3 to 5 knots during springs, causing heavy overfalls.
Hydrographic Office, Admiralty, London, 4th April 1878.
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