Rennell Island, locally known as Mungava,'s the main island of two inhabited islands that make up the Rennell and Bellona Province in the Solomon Islands. Rennell Island has a land area of that's about long and wide. It's the second largest upraised coral atoll in the world with the largest lake in the insular Pacific (Lake Tegano) that's listed as a World Heritage Site. Rennell Island has a population of about 3000 persons of Polynesian descent who primarily speak Renbelian, Pigin and some Eng… (More on Rennell)