Korok

The Korok (コログ Korogu) race consists of wooden people with the ability to fly. The Koroks are known as 'The Children of the Forest' and are watched over by the Great Deku Tree, who resides in Forest Haven. The Koroks are said to have once been the race of humanoid children-looking creatures called Kokiri, but by the time they meet a young Link upon the Great Sea, they have taken on wooden bodies. The Koroks became these creatures when they gave up their human selves for the ability to fly, with the help of an item called a Deku Leaf.

Once a year, a select group of Koroks go out into the world to plant trees. This is done so that one day, the sea will retreat, and the Old Hyrule will be restored. This is preceded by a large ceremony, with music provided by a Korok named Makar. He remains in Forest Haven to practice this music for the entire year on his violin to prepare for the show. Meanwhile, another Korok named Hollo studies potion-making in an area of Forest Haven.

Korok Ceremony
In The Legend of Zelda: The Wind Waker, the Korok Ceremony is a important holiday for the Koroks. The holiday can only be celebrated if the Korok Makar plays his violin for Great Deku Tree in the Forest Haven. In doing so the Great Deku Tree sprouts seeds which are taken by the Koroks to different islands on The Great Sea in hopes that new forests will grow and more land will cover the Great Sea.

Hollo
Hollo is a Korok that lives in Forest Haven. He can make a Blue Potion if Link gives him four Boko Baba Seeds. He is the only Korok that stays in the Forest Haven for the whole game. His name is likely a reference to Holly trees.

Irch
Irch is a Korok that lives in Forest Haven. After the forest ceremony, Irch goes to the Shark Island to plant new trees. His name is likely a reference to Birch trees.

Olivio
Olivio is a Korok that lives in Forest Haven. After the forest ceremony, Olivio goes to the Eastern Fairy Island to plant new trees. His name is likely a reference to Olive trees.

Oakin
Oakin is a Korok that lives in Forest Haven. After the forest ceremony, Oakin goes to the Star Island to plant new trees. His name is likely a reference to Oak trees.

Elma
Elma is a Korok who resides in Forest Haven. After the forest ceremony, he goes to Needle Rock Isle to plant new trees. His name is likely a reference to Elm trees.

Aldo
Aldo is a Korok that lives in Forest Haven. After the forest ceremony, Aldo goes to the Cliff Plateau Isles to plant new trees. His name is likely a reference to Alder trees.

Drona
Drona is a Korok that lives in Forest Haven. After the forest ceremony, Drona goes to the Private Oasis to plant new trees.

Linder
Linder is a Korok from the Forest Haven. He happens to be a friend of Makar. He was the one who told Link and the Great Deku Tree that Makar fell into the Forbidden Forest. After Link rescued him, the ceremony was complete. Linder got a Guardian Seed and headed to Greatfish Isle to plant new trees. His name is likely a reference to Oleander trees.

Rown
Rown is a Korok that lives in Forest Haven. After the forest ceremony, Rown goes to the Mother and Child Isles to plant new trees. His name is likely a reference to Rowan trees.