Santa Isabel Island Santa Isabel Island Santa Isabel Island (also known as Isabel, Ysabel and Mahaga) is the longest in the Solomon Islands, the third largest in terms of surface area, and the largest in the group of islands in Isabel Province. Choiseul lies to the north-west, Malaita to the south-east. The Pacific Ocean lies to the north, and Guadalcanal (Isatabu) to the south. The highest point in Santa Isabel is Mount Sasari, 1220 meters (3675 ft). River Marutho runs down that mountain into the ocean at Hofi. Almost all the rivers or streams run down that center point except for those at
Choiseul Sound Choiseul Sound Choiseul Sound is a stretch of sea in the Falkland Islands. It runs parallel to Eagle Passage and is between Lafonia and the north of East Falkland. Lively Island is in its mouth. At its entrance, on the northern shore, is the Bertha's Beach Important Bird Area which is also a Ramsar site, recognising it as a wetland of international importance. It was named by Louis de Bougainville after the French Foreign Secretary, Étienne François, duc de Choiseul. The name is pronounced "Chisel" in Falkland Islands dialect. (Richard Munro, Place Names of the Falkland Islands, 1998, p. 18.)