Pokémon Ruby and Sapphire/Jagged Pass

Jagged Pass leads down to Lavaridge Town. There are three trainers here, but it will require multiple trips down (or up, with the Acro Bike) the mountain to fight them all.

Zigzagoon: Level 21 Taillow: Level 22
 * Camper Ethan

Just southeast of Ethan is a Burn Heal.

Shroomish: Level 20 Oddish: Level 20 Swablu: Level 20
 * Picknicker Diana

Wild Pokémon

 * Spoink