Niniva Island in Tonga From Wikipedia, the free encyclopedia Niniva is an island in Lifuka district, in the Haʻapai islands of Tonga. The island is 26m high.[1] References [1]Sailing Directions (enroute) for the Pacific Islands. Defense Mapping Agency. 2002. p. 57. 19°46′06″S 174°37′24″WThis Tongan location article is a stub. You can help Wikipedia by adding missing information.vte Related Articles