Makassar Reefs are four isolated dangers, with depths of 3 to 8.2m, and deep channels between them. They lie from 1.75 to 7 miles S of Sumabawa, and from 6 to 7 miles offshore. They are marked by breakers or a heavy swell.
Between tg Tedulehu and Ujung Sumabawa, about 11 miles N, the coast is high, with mountain ranges approaching the coast. Ujung Sumabawa is marked by a light. A low plain begins here and extends N, gradually getting wider. About 1 mile W of Ujung Sumabawa, landing may be effected ...
Ujung Onolimb lies about 6 miles NW of Tanjung Sjuani. Onolimbu Road has good anchorage, in depths of 21.9m to 25.6m, mud. It is close to shore, abreast a road leading to Tagaule village. There is another anchorage off Bodsyihona village to the N, in a depth of 18.3m. Local knowledge ...
From Telok Dalam, the coast trends NE for about 6 miles to Tg Tedulehu (Balo Todojghu, Ujung Tedu Ichu, a low point covered with coconut trees. A number of villages lie scattered along this stretch of coast. A narrow reef fronts the shore, preventing loading in most places. With ...
Pulau Sumabawa, an island located about 5 miles SE of Tanjung Sjuani, is fringed by a narrow reef. 
