In the southern segment, approximately half of the route is split between land and sea. Entering the area from Petalburg City in the east, there is a ledge to the north and a set of stairs to the south. The ledge to the north blocks off a small area of the northeastern part of the route, which is only accessible via the southeast exit of Petalburg Woods and where a Poké Ball can be found lying on the ground. The main path skirts this ledge to turn north, running briefly through a patch of tall grass, then past Mr. Briney's cottage and towards a bed of soft soil. Turning east again at the bed of soft soil, tall grass once again springs up around the end of the path where it finally turns north a brief ways to lead into Petalburg Woods. Rich Boy WinstonRSORAS/Lady CindyE waits just south of the entrance to the woods to battle the player.
Down the stairs south of the Petalburg City entrance is a beach that extends a short ways away from the main path, connecting with another set of stairs back to the main path just in front of Mr. Briney's cottage. A pier at the northwest end of the beach by Mr. Briney's cottage also extends into the sea, and a ship initially sits docked at this pier. The sea leads south towards Route 105 and eventually Dewford Town. On the beach, Youngster Billy paces in a square looking for a battle. A couple of hidden items can also be found buried within the sand of the beach.
In the northern segment, where the path exits from Petalburg Woods, it branches west and east. The west branch quickly turns north to the Pretty Petal flower shop. A bed of soft soil is also located nearby outside the Pretty Petal flower shop, and behind the shop there is a sizable patch of grass where a couple of hidden items lie among the bare patches in the grass. Within the shop, the Wailmer Pail can be obtained from a girl on the north side of the shop and, after the player has obtained the Dynamo BadgeRSE/Balance BadgeORAS (and talked to the woman by the door to learn about Berries), plants for decorating the player's Secret Base can also be purchased.
The east branch of the path from Petalburg Woods follows the southern edge of a large pond for a considerable distance before connecting with a bridge that crosses the pond. Lady CindyRSORAS/Rich Boy WinstonE waits on the path shortly before it connects to the bridge to battle the player, while Lass Haley waits to challenge the player just east off the path where it bends to connect to the bridge. Just behind Haley there is a cuttable tree that blocks the way to an X AccuracyRSE/ReviveORAS. The bridge crosses the pond with a brief westward jog in the middle, and on this middle section of the bridge wait Twins Gina and Mia to challenge crossing Trainers in the first possible Double Battle the player will find in Hoenn (as long as the player has at least two Pokémon in their party). A PP Up can also be found on the east shore of the pond in a brief open spot if the player uses Surf.
On the north side of the pond, the entrance to Rustboro City lies to the northwest following the beaten path, the sides of which are dotted with a few persistent puddles. To the east of the bridge, Fisherman Ivan is eager to battle if spoken to, and farther east at the edge of the route is a bed of soft soil and an old woman who will give out a Chesto Berry.
Trainers with a PokéNav by their names will be registered in the Trainer's Eyes or Match Call function after the first battle, and may have a rematch with the player with higher-level Pokémon.
In the HOENN region there are pairs
of TRAINERS who challenge others
for 2-on-2 POKéMON battles
In a DOUBLE BATTLE, the TRAINER
must send out two POKéMON, the one at
the left of the list and the top one.
Watch how POKéMON are lined up.
Only the northern half of Route 104 was featured in the anime. While Mr. Briney and his boat shed appeared in On a Wingull and a Prayer!, the location was instead considered a part of Rustboro City's port district and not the southern portion of Route 104 as in the games.
In Taming of the Shroomish, Ash and his friends arrived in Rinshin Town, located on the edge of Petalburg Forest, and soon learned about a haunted mansion called the Green Lodge. They met Alex, the grandson of the original owner, who was in the midst of demolishing his dilapidated mansion to make way for a new development site. After he realized the mansion meant a lot to the large Shroomish population, Alex decided to still clear the block, but to make way for a new forest meant to house the Mushroom Pokémon.
Anthony and his "world powerful" Pelipper had established an unofficial Gym in another town featured in You Said a Mouthful!. Ash went on to challenge Anthony, and lost because of its peculiar array of moves. Max's initial suspicions later proved to be correct when it was revealed that Anthony had Poké Balls stored in Pelipper's bill. Anthony went on to close his Gym down and travel around with Pelipper.