From Bulbapedia, the community-driven Pokémon encyclopedia.
Eterna Forest (Japanese: ハクタイのもり Hakutai Forest) is a forest that one must travel through to get to Eterna City. Located on Route 205 is similar to Viridian Forest. It is a forest enveloped in chilly air. Thick stands of trees turn the forest into a natural maze. Notably, there is a mossy rock where an Eevee can be evolved into Leafeon.
When the player initially enters the forest, Cheryl will come up to the trainer and talk about Team Galactic, the criminal organization of Sinnoh. Presently, Cheryl will request to accompany the trainer through the forest. Subsequently, all battles in Eterna Forest will be double battles, including encounters with wild Pokémon. Her company is very useful - after every battle, Cheryl's Chansey will cure our Pokemon using Softboiled. Hovewer, during battles with wild Pokemon a little problem appears: you can throw a Pokeball only when there is one Pokemon left, and thus Chansey's Egg Bomb may accidentaly damage (or faint) the Pokemon we wanted to catch
(Only double battles)
- Psychic Lindsey
- Psychic Eljah
- Psychic Kody
- Psychic Rachael
In the Animé
Eterna Forest was featured in DP030, DP031, and DP032.