Transiting Selat Riau from S presents few difficulties.
The normal care and prudence required in narrow waters should suffice in the fairway. Some difficulty has at times been experienced by strangers in recognizing the entrance to Selat Riau on account of the numerous islands in its vicinity.
Care should be taken to guard against the strong tidal currents often encountered in this area.
Eastern Channel through Selat Riau can be used by small vessels proceeding through a swept channel in the S part of the E side of the strait. The least depth in the fairway of this channel is 6.9m.
Pulau Mantang and Pulau Suilung, separated by the narrow channel Selat Mara Limau, are together about 8 miles long, E and W, 1.5 miles wide, and lie NW of Pulau Telan. The channel is navigable only by small craft as the entrance is shallow. Pulau Mantang, the W island, is low, ...
The shore reef which fronts the coast from Tanjung Uban extends about 0.3 mile outside Sekerah. To the NE it blocks the whole of Teluk Sebong (Sebung Bay, between Sekerah and Tanjung Tondang, about 6 miles ENE; the bay is encumbered with reefs.
The Merodong group of islands lie to the W of Pulau Mesanak, between it and the Temiang group. The former group comprises six islands, separated by channels unsuitable for navigation and there is no reason in venturing among them or between them and Pulau Mesanak. Merodong, the ...
Pulau Karas Br, lying about 4 miles N of Korek Rapat, is 3.5 miles long and about 0.7 mile wide; it is hilly, with a flat summit, wooded, and has a reef encircling it extending in places for a distance of 0.25 mile.Pulau Karas-Ketjil (Karas-Kecil), an island marking the SW end of ...
The Selanga Islets, three in number, lying on the SE of Selat Pengelap, are small but elevated and conspicuous; the S islet is 35m high. With an opposing wind and current, a troublesome sea may arise in this area.The Pangelap group of islands separates Selat Pangelap from Selat Abang. ...
Pulau Telan (Telang), the SW point of which forms the SE limit of Selat Riau, is irregularly shaped and nearly 5 miles long, NE and SW, and about 1 mile wide. It is divided into two parts and may be identified by a square hillock on its S end, 63m high, which, with a sharper peak ...