After defeating Norman, head east from Petalburg City to Route 118. You'll need to use Surf (HM03) to cross the water. Continue east through Route 118, then north through Route 119 (where you'll encounter Team Aqua/Magma again and receive the Devon Scope). Finally, you'll reach Fortree City, a city built in the treetops. Fortree City is home to the sixth Gym Leader, Winona, who specializes in Flying-type Pokémon. Flying types are strong against Fighting, Bug, and Grass, but weak against Electric, Ice, and Rock. Before challenging Winona, ensure your Pokémon are around Level 32-36. A strong Electric or Ice-type Pokémon will be very effective. Defeating Winona earns you the Feather Badge, allowing you to use HM02 Fly outside of battle, and TM40 Aerial Ace.
