Sailing Guide

Pulau Alang Besar (E Sumatra)

Pulau Alang Besar (E Sumatra)

Characteristics

Description

Pulau Alang Besar, or Pulau Halang as it is also referred to, is situated off the eastern coast of Sumatra in Riau Province, Pabupaten Bengkalis. The island and associated coastline lie at Kuala Rokan.

This small mangrove island and the nearby coastline contain extensive habitats of significance for waterbirds, crocodiles and local fisheries.

Pulau Alang-besar, about 25 miles SE of Tanjung Pejudian, lies in the entrance of the Sungai Rokan.

The approach to this river is fouled by mudbanks. Off Tanjung Belanda, the E entrance point, and Tanjung Sinaboi about 16 miles ENE, the coastal bank dries out from 2.5 to 6 miles.
A shoal, with depths of less than 10m, then extends about 26 miles NW from this section of coast and about 25 miles N from Pulau Alang-besar.

23/01/2012
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Localisation

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Sites around Pulau Alang Besar (E Sumatra)
Flying distances - Direct line

Pyramid shoal (Malaysia)

56nm
74°
Pyramid Shoal, which lies on the N side of the SE end of South Sands, has a least depth of 3.4m, hard sand, and is the most dangerous shoal in the area because of its depth and protrusion into the fairway.
A lighted buoy is moored about 7 miles SE of Pyramid Shoal. A depth of about ...
28 Dec 11

Tanjung Sinaboi (E Sumatra)

22nm
72°
Tanjung Sinaboi, low and thickly wooded, is the NE extremity of the peninsula separating theSungai Rokan from Selat Rupat.
Pulau Sinaboi, a small lightcolored islet, lies close NW of Tanjung Sinaboi and shows up well against the darker growth of the mainland.
25 Jan 12

Tanjung Percudian (E Sumatra

29nm
314°
Tanjung Percudian is fringed by mangroves and may be easily identified by the high trees behind it, decreasing very rapidly in elevation upon closer approach.
Panipahan Village stands 4 miles S of this point.
Between Panipahan Village and the entrance of the Sungai Rokan, about ...
23 Jan 12

Tanjung Pertandangan (E Sumatra)

41nm
319°
Between Tanjung Pertandangan and Tanjung Sinaboi, about 56 miles ESE, the only points of identification are the river mouths.
The mangrove covered coast is mostly muddy and low lying. The coastal bank, as far out as the 10m curve, is marked by fishing stakes and enclosures. Fishing ...
23 Jan 12

Amazon Maru Shoal (Selangor Malaysia)

45nm
24°
Amazon Mara Shoal, with a least depth of 8.4m, lies about 2.2 miles S of One Fathom Bank Light.A dangerous wreck, marked by a lighted buoy, lies in the southeastbound lane of the Traffic Separation Scheme. Another dangerous wreck, with a depth of 16m over it, lies 10 miles WNW of ...
24 Dec 11

One Fathom Bank (Selangor Malaysia)

48nm
22°
One Fathom Bank (2°53'N., 100°59'E.) is a detached patch, with depths from 3 to 10m, which extends 5 miles in a NW direction reaching 1 mile in width. One Fathom Bank Light is situated 0.6 mile from the SE extremity of the bank.
A stranded wreck is situated about 0.7 mile NW ...
12 Mar 13

Water islands (Malacca - Malaysia)

98nm
93°
Between Melaka and Tanjong Seginting, about 46 miles SE, the low, thickly wooded coast is bordered by a mud bank which extends up to 2.5 miles offshore in places.
The Water Islands, centered about 8 miles SE of Melaka, consists of a group of six tree-covered islands of moderate ...
5 Jan 12

Selat Rupat (Selat Dumai) (E Sumatra)

54nm
121°
Selat Rupat (Selat Dumai) separates Pulau Rupat from the mainland of Sumatera. Tanjung Ketam, the W entrance point of the N end of Selat Rupat, is low and sandy and is marked by some houses and coconut trees.
25 Jan 12

Raleigh shoal (NE Sumatra)

72nm
93°
Raleigh Shoal, about 4 miles long in a NW to SE direction with a least depth of 4.8m, lies centered about 15 miles E of Tanjung Medang.
A shoal, with a depth of 19.4m, was reported to lie 3.5 miles NNW of Raleigh Shoal. A lighted buoy is moored on the S side of the shoal. There ...
29 Dec 11

Dumai harbour (E Sumatra)

55nm
121°
Dumai is a seaport town situated on the S side of Selat Rupat on the mainland coast of Sumatera directly opposite Tanjung Kapal. Dumai is an important oil loading terminal, with facilities for loading general cargo.
This is one of the main entry points into Sumatra by boat. ...
25 Jan 12

Tanjong Ru (Pulau Carey - Malaysia)

54nm
43°
Tg Ru is located E side of the approach to Selat Kelang, on Pulau Carey, It is the S point of the South fairway of port Klang .
The coast between Tanjong Ru and Tanjong Gabang, about 15 miles SE, is indented about midway along its length by Kuala Langat. This shallow river is not ...
29 Dec 11

Bambek shoal (Selangor - Malaysia)

63nm
69°
Bambeck Shoal, the nearest shoal on the NE side lies on the NE side of the fairway.
Bambek shoal, about 4 NM offshore, lies SW of the mouth of Sungai Sepang Besar.
It has a depth of 0,3 m near its center and is composed of hard sand.
Its NW and SE sides are steep-to with ...
30 Dec 11
Local Area

Tanjung Siapiapi to tg Sinaboi (E Sumatra)

The coast between Tanjung Siapiapi and Tanjung Pertandangan, about 20 miles SE, is indented by a large bay fouled by shoals.
Several navigable channels lead through these shoals to the mouths of the Sungai Kuala Kualu and the Sungai Panai.  Tides—CurrentsBetween Tanjung ...
23 Jan 12

Tanjung Jamboaye to Tg Sinaboi (NE Sumatra)

The coast between Tanjung Jambuair and Ujung Tamiang about 69 miles SE, is plain, with few prominent features.
From February through May the high mountains in the interior are occasionally visible. During the rest of the year they can usually be seen in the morning. Many of the ...
21 Jan 12

Sumatra (Indonesia)

Sumatra (Indonesian: Sumatera) is an island in western Indonesia, westernmost of the Sunda Islands.
The longest axis of the island runs approximately 1,790 km (1,110 mi) northwest-southeast, crossing the equator near the centre. At its widest point the island spans ...
7 Jan 12

Indian Ocean

The Indian Ocean is the third largest of the world's oceanic divisions, covering about 20% of the Earth's water surface. It is bounded on the north by Asia (including the Indian subcontinent, after which it is named); on the west by Africa; on the east by Indochina, the Sunda Islands, ...
6 Apr 12

Pulau-Pulau Aruah (E Sumatra)

Pulau-Pulau Aruah (Aruah Islands) is composed of two groups of small islands and some off-lying rocks which are located on a bank with depths of less than 20m. The S end of the bank joins an extensive mud bank lying adjacent to the Sumatera coast.
Batu Utara (2°55'N., 100°36'E.), ...
25 Jan 12
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