Guadalcanal is situated in the Solomon Islands in the Pacific Ocean, north-east of Australia. Its local name is Isatabu and contains the country's capital, Honiara. The island is humid and mostly made up of jungle with a surface area of 2,510 square miles or 6,500-km². Guadacanal was named after Pedro de Ortega's home town Guadacanal in Andalusia, Spain. de Ortega worked under Álvaro de Mendaña who charted the island in 1568.