Sixis

Sixis is an island in East Blue, where Ace was stranded on during the start of his journey.

Geography
Not much is known about the Island's geography other then the fact that the island is surrounded by weird rough currents, which led to people being stranded on the island, with hardly any way to leave.

The Island has trees on it, with one branch being used by Deuce in an attempt to kill Ace, and several was crafted by him into a makeshift Raft powered by Ace's newly obtained Devil Fruit, the Mera Mera no Mi.

History
Two years before the start of the series Portgas D. Ace and Masked Deuce were stranded there with no way out. The two talked, and Deuce discover about Ace's heritage, causing him to distance himself from the pirate. Some time afterwards, unable to find any food or water, Deuce saw Ace with a fruit and decided to kill him for it, however his plan failed and to his surprise Ace offered him half of the fruit, fixing their relationship. Upon discovery of fruit nature, the two build a raft to escape the island.

Wildlife
Being a deserted island, Sixis has little to none wildlife. When stranded there, it was stated that Deuce nearly starved to death, driving his to consider murder for single fruit.

Trivia

 * The name of the Island is Palindrome.