Union Cave Crystal · Johto landmark

Gift and special Pokémon

Lapras Lv. 20 · One-off encounter

Appears in the B2F lake every Friday.

Wild Pokémon

1F

Walking in the cave encounter rate 6%

Pokémon	Type	Lv.	Morning	Day	Night
Rattata	Normal	4–6	10%	10%	40%
Sandshrew	Ground	6	30%	30%	–
Geodude	RockGround	6	30%	30%	30%
Zubat	PoisonFlying	5–7	25%	25%	5%
Wooper	WaterGround	5	–	–	20%
Onix	RockGround	6	5%	5%	5%

Surfing encounter rate 2%

Pokémon	Type	Lv.	Chance
Wooper	WaterGround	15	60%
Quagsire	WaterGround	15–20	40%

Fishing

Rod	Pokémon	Lv.	Morning & day	Night
Old Rod	Magikarp	10	85%	85%
	Goldeen	10	15%	15%
Good Rod	Goldeen	20	65%	65%
	Magikarp	20	35%	35%
Super Rod	Goldeen	40	70%	70%
	Magikarp	40	20%	20%
	Seaking	40	10%	10%

B1F

Walking in the cave encounter rate 6%

Pokémon	Type	Lv.	Morning	Day	Night
Zubat	PoisonFlying	6–8	50%	50%	30%
Geodude	RockGround	8	30%	30%	30%
Wooper	WaterGround	8	–	–	20%
Rattata	Normal	6–8	10%	10%	10%
Onix	RockGround	8	10%	10%	10%

Surfing encounter rate 2%

Pokémon	Type	Lv.	Chance
Wooper	WaterGround	15	60%
Quagsire	WaterGround	15–20	40%

Fishing

Rod	Pokémon	Lv.	Morning & day	Night
Old Rod	Magikarp	10	85%	85%
	Goldeen	10	15%	15%
Good Rod	Goldeen	20	65%	65%
	Magikarp	20	35%	35%
Super Rod	Goldeen	40	70%	70%
	Magikarp	40	20%	20%
	Seaking	40	10%	10%

B2F

Walking in the cave encounter rate 4%

Pokémon	Type	Lv.	Morning	Day	Night
Zubat	PoisonFlying	22	50%	50%	30%
Golbat	PoisonFlying	22	30%	30%	30%
Quagsire	WaterGround	22	–	–	20%
Raticate	Normal	21	10%	10%	10%
Geodude	RockGround	20	5%	5%	5%
Onix	RockGround	23	5%	5%	5%

Surfing encounter rate 4%

Pokémon	Type	Lv.	Chance
Tentacool	WaterPoison	15	60%
Quagsire	WaterGround	20	30%
Tentacruel	WaterPoison	20	10%

Fishing

Rod	Pokémon	Lv.	Morning & day	Night
Old Rod	Magikarp	10	85%	85%
	Krabby	10	15%	15%
Good Rod	Krabby	20	55%	55%
	Magikarp	20	35%	35%
	Staryu	20	–	10%
	Corsola	20	10%	–
Super Rod	Krabby	40	60%	60%
	Staryu	40	–	30%
	Corsola	40	30%	–
	Kingler	40	10%	10%

Chances are the game’s encounter slots for each time of day: morning 4:00–9:59, day 10:00–17:59, night 18:00–3:59 (grass and caves 30/30/20/10/5/4/1, surfing 60/30/10). Where to find every Pokémon · Crystal vs Gold & Silver.

Trainers

Trainer	Pokémon	Prize	Where
HikerDaniel	Onix 11	₽88	1F
PokéManiacLarry	Slowpoke 10	₽150	1F
HikerRussell	Geodude 4Geodude 6Geodude 8	₽64	1F
FirebreatherRay	Vulpix 9	₽108	1F
FirebreatherBill	Koffing 6Koffing 6	₽72	1F
HikerPhillip	Geodude 23Geodude 23Graveler 23	₽184	B1F
HikerLeonard	Geodude 23Machop 25	₽200	B1F
PokéManiacAndrew	Marowak 24Marowak 24	₽360	B1F
PokéManiacCalvin	Kangaskhan 26	₽390	B1F
Cooltrainer♂Nick	Charmander 26Squirtle 26Bulbasaur 26	₽312	B2F
Cooltrainer♀Gwen	Eevee 26Flareon 22Vaporeon 22Jolteon 22	₽264	B2F
Cooltrainer♀Emma	Poliwhirl 28	₽336	B2F

Prize money is the trainer class’s base payout times the level of the trainer’s last Pokémon. Trainers with phone rematches call you when they want another battle; their teams grow as you progress.

Items

Hidden items can be found with the Itemfinder from Ecruteak City.

Tips

• Every Friday a Lv20 Lapras waits in the B2F lake; if it faints or you catch it, another appears the following Friday.
• Fishing on B2F gives Corsola by day and Staryu at night (10% with the Good Rod, 30% with the Super Rod).
• Wooper appears only at night on 1F and B1F (20%), while Sandshrew is a 1F morning and day find (30%).
• TM39 Swift lies on B1F, and an Elixer and a Hyper Potion wait on B2F.
• A Strength boulder sits on B1F, so return with HM04 to reach every corner.

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