High Quality Content by WIKIPEDIA articles! Malaita is the largest island of the Malaita Province in the Solomon Islands. A tropical and mountainous island, Malaita`s pristine river systems and tropical forests have not been exploited. Malaita is the most populous island of the Solomon Islands, with 140,000 people or more than a third of the entire national population. The largest city and provincial capital is Auki, on the northwest coast.