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
Malaita Like most Pacific islands, there are not large numbers of mammals. Apart from several species of bats, there are introduced species of pig, cuscus, and rodent. There are also dugong in the mangrove swamps, and sometimes dolphins in the lagoon. Additionally, there are a great number and variety of birds. Almost every family of avifauna were found in Ernst Mayr's 1931 survey. Several species of parrots, cockatoos, and owls are kept as pets. Some bird species are endemic to Malaita, such as the Malaita fantail. Reptiles and amphibians are common as well, especially skinks and geckos. Crocodiles were once common,