Ko Ovaka ko e motu ia ʻo e pupunga motu fakatonga ʻo Vavaʻu. ʻOku tuʻu ʻi ai ʻa e kolo mo hono hingoa tatau (18.742° S 174.097° W).
Ko e tofiʻa ia ʻo e puleʻanga ʻo Tonga. Latitute longitute: 18°742 tonga 174°103 hihifo