Rusa
Originally, this tiny, uninhabited island was long used by the Brotherhood of Makuta for the testing of new plant and Rahi creations – and thus sported some of the most diverse wildlife found anywhere in the Matoran universe, with several species only found here. The island was never settled because the Makuta discouraged it – for safety reasons. After one of their number was even rumored to have died following the test of a new plant species, they abandoned the island. It was subsequently sold to the Vortixx, who proceeded to destroy it as an obstacle to a major trade route between Xia and Metru Nui. Not far from Rusa’s coast lay a major Gawalai undersea settlement, which survived the destruction of the island unscathed.