The Yasawa Group is an archipelago

Archipelago

An archipelago , sometimes called an island group, is a chain or cluster of islands. The word archipelago is derived from the Greek ἄρχι- – arkhi- and πέλαγος – pélagos through the Italian arcipelago...

 of about 20 volcanic

Volcano

2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

 island

Island

An island or isle is any piece of sub-continental land that is surrounded by water. Very small islands such as emergent land features on atolls can be called islets, cays or keys. An island in a river or lake may be called an eyot , or holm...

s in the Western Division

Western Division, Fiji

The Western Division of Fiji is one of Fiji's four divisions. It consists of the three provinces Ba, Nadroga-Navosa and Ra.The capital of the division is Lautoka. The division includes the western part of the largest island in Fiji, Viti Levu, with a few outlying islands, including the Yasawa...

 of Fiji

Fiji

Fiji , officially the Republic of Fiji , is an island nation in Melanesia in the South Pacific Ocean about northeast of New Zealand's North Island...

, with an approximate total area of 135 square kilometers.
The Yasawa volcanic group

Volcanic group

A volcanic group is a collection of related volcanoes or volcanic landforms. Note that the term is also used in a different sense when it denotes a suite of associated rock strata largely of volcanic origin; see group for details.-Notable volcanic groups:-See also:*Complex...

 consists of six main islands and numerous smaller islets. The archipelago, which stretches in a north-easterly direction for more than 80 kilometers from a point 40 kilometers north-west of Lautoka

Lautoka

Lautoka is the second largest city of Fiji and the second largest in the South Pacific. It is in the west of the island of Viti Levu, 24 kilometres north of Nadi, and is the second port of entry in Fiji, after Suva. Lying in the heart of Fiji's sugar cane growing region, it is known as the Sugar...

, is volcanic in origin and very mountainous, with peaks ranging from 250 to 600 meters in height.