The coast-line from Taknaf, the mouth of the Naaf, in the Akyab district on the north, to the estuary of the Pakchan at Maliwun on the south, is about 1200 m.
It stretches from Cape Negrais on the south to the Naaf estuary, which divides it from the Chittagong division of Eastern Bengal and Assam on the north, and includes the districts of Sandoway, Kyaukpyu, Akyab and northern Arakan, an area of some 18,540 sq.
The island of Shahpura, at the mouth of the Naaf river, had been occupied by a small guard of British troops.
It consists of a strip of country running along the eastern seaboard of the Bay of Bengal, from the Naaf estuary, on the borders of Chittagong, to Cape Negrais.
The principal rivers of Arakan are - (1) the Naaf estuary, in the north, which forms the boundary between the division and Chittagong; (2) the Myu river, an arm of the sea, running a course almost parallel with the coast for about 50 m.; (3) the Koladaing river, rising near the Blue mountain, in the extreme north-east, and falling into the Bay of Bengal a few miles south of the Myu river, navigable by vessels of from 300 to 400 tons burden for a distance 01 40 m.