Celadon City Gym

Lass Kay: Oddish (Level 28, Grass/Poison). Weak to Fire, Flying, Ice, and Psychic. Be wary of Toxic.

Head south, then east. Cut down the top tree branch and follow the path north. Branching paths appear; go east to battle Beauty.

Beauty Mai: Exeggcute (Level 29, Grass/Psychic). Doubly weak to Bug-types. Also weak to Fire, Ice, Flying, and Dark. Watch out for status moves.

From the previous branch, head west and around. As you turn east, avoid Picnicker Tina by hugging the hedge below.

Picnicker Tina: Gloom (Level 29, Grass/Poison). . Use super-effective moves before it uses status moves.

Continue south from Tina. After a corner, a Beauty is to the right. Hug the hedges above to avoid her.

Beauty Tamia: Oddish (Level 29, Grass/Poison) and Weepinbell (Level 29, Grass/Poison). Weak to Fire, Flying, Ice, Psychic, and Steel (for poison resistance).

Head north from Tamia towards tree branches. Cut down the left branch to proceed west. You will pass Erika. Near the north-west corner, a Beauty can be evaded by staying near the hedges below.

Beauty Lori: Gloom (Level 29, Grass/Poison). . This Gloom only has attacking moves.

Follow the path below. In the bottom-right corner, slow down to avoid a trainer to the left by not standing in the center of the path.

Ace Trainer Mary: Weepinbell (Level 31, Grass/Poison) and Tangela (Level 32, Grass). Weepinbell can cause Paralysis. Tangela is pure Grass, making it easy to counter with super-effective moves.

Go up and around to the left. To the north-west, you'll find Lass Lina.

Lass Lina: Bellsprout (Level 28, Grass/Poison) x3. . Be aware of status condition moves.

Below, cut down the right tree branch. Further south, cut down the left tree branch. Follow the path upwards and east to reach Erika.