Pokemon Emerald Route 124 and Mossdeep City Walkthrough

Route 124 and Mossdeep City is a dedicated section page for Phase 7: Mind Badge. Surf east to Mossdeep, visit Steven's house, and prepare for the double Gym.

Route Plan

Primary source maps covered here: Route 124, Underwater Route 124, Mossdeep City, Mossdeep City Stevens House, Mossdeep City Space Center 1F, Mossdeep City Game Corner 1F, Mossdeep City Game Corner B1F. Follow this page as its own checklist, then return to the phase index when the wild Pokemon, trainers, items, and boss notes are complete.

Wild Pokemon

Area / subarea	Method	Pokemon	Level range	Odds	Time / condition	Requirements
Route 124	Surf	Tentacool	Lv. 5-35	60%	Any time	Surf
Route 124	Surf	Wingull	Lv. 10-30	35%	Any time	Surf
Route 124	Surf	Pelipper	Lv. 25-30	5%	Any time	Surf
Route 124	Old Rod	Magikarp	Lv. 5-10	70%	Any time	Old Rod
Route 124	Old Rod	Tentacool	Lv. 5-10	30%	Any time	Old Rod
Route 124	Good Rod	Magikarp	Lv. 10-30	60%	Any time	Good Rod
Route 124	Good Rod	Tentacool	Lv. 10-30	20%	Any time	Good Rod
Route 124	Good Rod	Wailmer	Lv. 10-30	20%	Any time	Good Rod
Route 124	Super Rod	Wailmer	Lv. 25-45	60%	Any time	Super Rod
Route 124	Super Rod	Sharpedo	Lv. 30-35	40%	Any time	Super Rod
Underwater Route 124	Surf	Clamperl	Lv. 20-35	65%	Any time	Surf
Underwater Route 124	Surf	Chinchou	Lv. 20-30	30%	Any time	Surf
Underwater Route 124	Surf	Relicanth	Lv. 30-35	5%	Any time	Surf
Mossdeep City	Surf	Tentacool	Lv. 5-35	60%	Any time	Surf
Mossdeep City	Surf	Wingull	Lv. 10-30	35%	Any time	Surf
Mossdeep City	Surf	Pelipper	Lv. 25-30	5%	Any time	Surf
Mossdeep City	Old Rod	Magikarp	Lv. 5-10	70%	Any time	Old Rod
Mossdeep City	Old Rod	Tentacool	Lv. 5-10	30%	Any time	Old Rod
Mossdeep City	Good Rod	Magikarp	Lv. 10-30	60%	Any time	Good Rod
Mossdeep City	Good Rod	Tentacool	Lv. 10-30	20%	Any time	Good Rod
Mossdeep City	Good Rod	Wailmer	Lv. 10-30	20%	Any time	Good Rod
Mossdeep City	Super Rod	Wailmer	Lv. 25-45	60%	Any time	Super Rod
Mossdeep City	Super Rod	Sharpedo	Lv. 30-35	40%	Any time	Super Rod

Trainers

Order	Area	Trainer	Team	Reward	Notes
1	Route 124	Swimmer M Spencer	Tentacool Lv. 33 Wingull Lv. 33	264	Story/route battle.
2	Route 124	Swimmer M Roland	Carvanha Lv. 34	272	Story/route battle.
3	Route 124	Swimmer F Jenny	Wailmer Lv. 34	272	May have Match Call/rematch data later.
4	Route 124	Swimmer F Grace	Marill Lv. 34	272	Story/route battle.
5	Route 124	Swimmer M Chad	Tentacool Lv. 33 Wailmer Lv. 33	264	Story/route battle.
6	Route 124	Sis And Bro Lila & Roy	Chinchou Lv. 34 Carvanha Lv. 33	792	May have Match Call/rematch data later.
7	Route 124	Swimmer M Declan	Gyarados Lv. 34	272	Story/route battle.
8	Route 124	Triathlete Isabella	Staryu Lv. 34	1360	Story/route battle.
9	Mossdeep City Space Center 1F	Team Magma Grunt	Zubat Lv. 31 Poochyena Lv. 31	620	Story/route battle.
10	Mossdeep City Space Center 1F	Team Magma Grunt	Numel Lv. 32	640	May have Match Call/rematch data later.
11	Mossdeep City Space Center 1F	Team Magma Grunt	Baltoy Lv. 32	640	Story/route battle.
12	Mossdeep City Space Center 1F	Team Magma Grunt	Mightyena Lv. 26 Mightyena Lv. 28 Numel Lv. 30	600	Story/route battle.

Items

Item	Type	Location	Requirement / flag context
Red Shard	Visible	Route 124, on the north side at map coordinates (28,12)	ROUTE 124 RED SHARD
Blue Shard	Visible	Route 124, on the central area at map coordinates (31,53)	ROUTE 124 BLUE SHARD
Yellow Shard	Visible	Route 124, on the northeast side at map coordinates (58,11)	ROUTE 124 YELLOW SHARD
Carbos	Hidden	Underwater Route 124, hidden on the central area at map coordinates (42,51)	UNDERWATER 124 CARBOS
Green Shard	Hidden	Underwater Route 124, hidden on the west side at map coordinates (14,40)	UNDERWATER 124 GREEN SHARD
Pearl	Hidden	Underwater Route 124, hidden on the east side at map coordinates (66,34)	UNDERWATER 124 PEARL
Big Pearl	Hidden	Underwater Route 124, hidden on the southeast side at map coordinates (64,54)	UNDERWATER 124 BIG PEARL
Heart Scale	Hidden	Underwater Route 124, hidden on the southeast side at map coordinates (70,64)	UNDERWATER 124 HEART SCALE 1
Calcium	Hidden	Underwater Route 124, hidden on the north side at map coordinates (42,5)	UNDERWATER 124 CALCIUM
Heart Scale	Hidden	Underwater Route 124, hidden on the central area at map coordinates (45,36)	UNDERWATER 124 HEART SCALE 2
Net Ball	Visible	Mossdeep City, on the southeast side at map coordinates (62,35)	MOSSDEEP CITY NET BALL
Kings Rock	Gift / reward	Mossdeep City, Kings Rock Boy	NPC gift or story reward
HM08 Dive	Gift / reward	Mossdeep City Stevens House, Steven Gives Dive	NPC gift or story reward
Sun Stone	Gift / reward	Mossdeep City Space Center 1F, from the first-floor NPC	Before or during the Magma Space Center story

Completion Checklist

• Clear the main objective: Surf east to Mossdeep, visit Steven's house, and prepare for the double Gym.
• Review every wild Pokemon method listed for the section.
• Fight or deliberately skip every trainer listed in route order.
• Collect visible items, hidden items, and scripted rewards you care about before moving on.

Source Notes

• Source of truth: pret/pokeemerald wild_encounters.json, map map.json object/background events, map scripts.inc, trainers.h, and trainer_parties.h.
• Encounter odds are aggregated by species and method from Emerald slot rates. Most rows are marked Any time because Emerald has no normal day/night wild encounter split.
• Pokemon table sprites use locally cached Emerald front sprites from /guides/pokemon-emerald-pokemon-sprites.json.
• Trainer art on this page uses the local Emerald trainer manifest and reused Hoenn character art where Emerald-specific artwork is not available.