Pokémon Ruby and Sapphire/Route 120

First and foremost, walk past the trainers and tall grass to the wooden bridge, where Steven is. He will use his Devon Scope to reveal a wild Kecleon which immediately attacks. This is a good time to catch one if you haven't already, but don't worry if you don't catch it - they can be found in tall grass on this route (though they are admittedly rare). After the battle ends, he gives the Devon Scope, which will allow you to scare off the Kecleon blocking access to Fortree City's Gym.

After Fortree

Upon returning to the area, if you keep to the north, you'll find the interviewers again (see the trainers section for their Pokémon). Additionally, in the westernmost section of the first patch of tall grass, you can find some steps leading down to the lake. However, they are blocked by one of the six hidden Kecleon on this route. After defeating the Kecleon, surfing to the southernmost section of the pond will lead to the entrance to Scorched Slab.

Continuing down the path will eventually lead you through a puddle-filled part of the route with a few trainers, and to the grass maze. The player has two options here: walk straight through the grass and skip most of the trainers (but run the risk of encountering wild Pokémon); or go through the maze properly and skip most Pokémon encounters (but run the risk of battling the trainers).

Either way, the maze has to be traversed to continue down the route. After the maze, there will be two ledges that regulate traffic to and from the maze, and funnel any southward travellers east of the nearby pond. From there, there will be a second bridge to cross. Travelling further south will lead to a fork in the road.

The west fork leads to an elevated path, and multiple soft soil patches (this makes the route an ideal place for farming berries). Near the first set of patches, there will be a lady; talking to her will reward you with rare berries, so make sure to come back frequently. At the very end is a rock formation that looks strangely familiar to one you saw in the Desert (see Capturing the Regis for more details). The east fork leads to the end of the route, and Route 121.

Invisible Kecleon Locations

On the northern bridge, battled after acquiring the Devon Scope from Steven
Behind the route sign in the north of the route
Blocking the steps down to the Scorched Slab
In the middle of the path, connecting the two Pokémon Rangers in the grass maze
By the four plots of soft soil south of the Ancient Tomb, north of the westernmost plot
On the north side of the Ancient Tomb

Pokemon Found

Ruby & Sapphire	Level	Encounter Rate	Emerald	Level	Encounter Rate
Linoone	25, 27	30%	Mightyena	25, 27	30%
Zigzagoon	25	20%	Poochyena	25	20%
Surskit	25	1%	Seedot	25	1%
Oddish		25-27		25%
Marill		25, 27		15%
Absol		25, 27		8%
Kecleon		25		1%
Surfing
Goldeen		5-35		99%
Surskit	20-30	1%	Seedot	20-30	1%
Old Rod
Magikarp		5-10		70%
Goldeen		5-10		30%
Good Rod
Magikarp		10-30		60%
Goldeen		10-30		20%
Barboach		10-30		20%
Super Rod
Barboach		20-45		100%
Special Pokémon
Kecleon		30		Six (One-time encounters)

Items

Rare Candy - At the northern end of the route, at the end of the path behind the trees (Requires Cut) (Hidden)
Rare Candy - On the small shore on the southwest part of the route (Requires Cut) (Hidden)
Revive - In a clear square on the northernmost patch of grass (Hidden)
Nest Ball - On the narrow ledge near the northern end of the route (Requires Devon Scope )
Devon Scope - From Steven, after battling a Kecleon
Revive - In the center of the puddle-laden area
Aspear Berry x6 - In the soft soil patch near the puddle-laden area (Requires Cut)
Zinc - North part of the grass maze, on the last square of bare path; southwest of the maze's northern entrance (Hidden)
Nugget - In the western portion of the grass maze
Pecha Berry x6 - In the soft soil patch near the girl giving out Berries
Nanab Berry x3 - In the soft soil patch on the shore of the pond in the southwest corner of the route
Pinap Berry x3 - In the soft soil patch on the shore of the pond in the southwest corner
Wepear Berry x3 - In the soft soil patch on the shore of the pond in the southwest corner
Razz Berry x3 - In the soft soil patch on the shore of the pond in the southwest corner
Full Heal x3 - On the southern shore of the pond in the southwest corner (Requires Cut)
Hyper Potion - Among the long grass near Route 121.

Trainers

Ruby and Sapphire
Picture	Pokémon	Reward
Parasol Lady Clarissa	Goldeen (lvl. 29) Wailmer (lvl. 29)	1160
Interviewers Gabby & Ty	Magneton (lvl. 30) Loudred (lvl. 30)	2880
Bird Keeper Robert	Swablu (lvl. 30)	960
Bird Keeper Colin	Natu (lvl. 29) Swellow (lvl. 29)	928
Parasol Lady Angelica	Castform (lvl. 30)	30
Ninja Boy Tsunao	Nincada (lvl. 28) Koffing (lvl. 28) Ninjask (lvl. 28)	336
Cool Trainer Jennifer	Milotic (lvl. 31)	1488
Pokémon Ranger Jenna	Lotad (lvl. 29) Lombre (lvl. 29) Nuzleaf (lvl. 29)	1392
Pokémon Ranger Carlos	Seedot (lvl. 29) Nuzleaf (lvl. 29) Lombre (lvl. 29)	1392
Bug Maniac Brandon	Surskit (lvl. 28) Surskit (lvl. 28) Surskit (lvl. 28)	1680
Ninja Boy Keigo	Koffing (lvl. 29) Ninjask (lvl. 29)	348
Ruin Maniac Chip	Sandshrew (lvl. 28) Sandshrew (lvl. 28) Sandslash (lvl. 28)	1680

Emerald
Picture	Pokémon	Reward
Parasol Lady Clarissa	Roselia (lvl. 28) Wailmer (lvl. 28)	1120
Interviewers Gabby & Ty	Magneton (lvl. 30) Loudred (lvl. 30)	2880
Bird Keeper Robert	Swablu (lvl. 29)	928
Bird Keeper Colin	Wingull (lvl. 28) Natu (lvl. 28)	896
Cool Trainer Lionel	Manectric (lvl. 30)	1440
Parasol Lady Angelica	Castform (lvl. 30)	1200
Ninja Boy Riley	Nincada (lvl. 28) Koffing (lvl. 28)	336
File:PKMN Emerald BattleGirl.png Battle Girl Callie	Meditite (lvl. 28) Makuhita (lvl. 28)	672
Cool Trainer Jennifer	Sableye (lvl. 30)	1440
Pokémon Ranger Jenna	Lotad (lvl. 28) Lombre (lvl. 28) Nuzleaf (lvl. 28)	1344
Pokémon Ranger Lorenzo	Seedot (lvl. 28) Nuzleaf (lvl. 28) Lombre (lvl. 28)	1344
Bug Maniac Jeffrey	Surskit (lvl. 27) Surskit (lvl. 27) Surskit (lvl. 27)	1620
Ninja Boy Keigo	Koffing (lvl. 28) Ninjask (lvl. 28)	336
Ruin Maniac Chip	Baltoy (lvl. 27) Sandshrew (lvl. 27) Sandslash (lvl. 27)	1620