Uiha is an island in Lifuka

Lifuka

Lifuka is an island in the Kingdom of Tonga. It is located within the Haapai Group in the centre of the country, to northeast of the national capital of Nukualofa...

 district, in the Haapai

Ha'apai

Haapai is a group of islands, islets, reefs and shoals in the central part of the Kingdom of Tonga, with the Tongatapu group to the south and the Vavau group to the north. Seventeen of the Haapai islands are populated....

 islands of Tonga

Tonga

Tonga, officially the Kingdom of Tonga , is a state and an archipelago in the South Pacific Ocean, comprising 176 islands scattered over of ocean in the South Pacific...

. It had a population of 638 (in 2006) and an area of 5.36 km².

More about Ha'apai at http://www.nelligennet.com/horst.com

If you want to know more about Uiha, you can contact its one expatriate resident Horst Berger, Felemea, Uiha Island, Ha'apai, Kingdom Of Tonga, South Pacific.