From Bulbapedia, the community-driven Pokémon encyclopedia.

Sunburst Island
ポンカン島 Ponkan Island
[[image:|250px]]
Info
Region	Orange Islands
Anime debut	The Crystal Onix
Location of Sunburst Island in the Orange Islands.

Sunburst Island (Japanese: ポンカン島 Ponkan Island) is located in the southwestern region of the Orange Archipelago. It is known for its high-quality glassblowing shops. People come from around the world to see them.

A smaller island is connected to the main island, but the path is only accessible when the tide is very low. A crystal Onix that is immune to Water-type attacks dwells within the crystal caves of the smaller island.