You get a choice to battle Maylene in Veilstone city 3rd or Wake from Pastoria city.
In the goldenrod gym.
In Pokémon HeartGold, you can find the 3rd Gym Leader in Goldenrod City.
You find it in Peril Cliffs (the Pokemon is Spearow).
The third Gym Leader is Lt. Surge and you can find him in Vermilion City.
you have got to find them at the top not sure where!
there are tons of rare Pokemon in Pokemon peril but i can tell u a few red garados-lake valor cressilia-full moon island uxie-valor mesprit-veriaty azlef-?
Aerodactyl - you can find one in the vines at the Peril Cliffs
You can only find it Post-ending at Peril Cliffs.
aron you say? towards the top of peril cliffs, that's where you'll find it aron you say? towards the top of peril cliffs, that's where you'll find it
I used a Nidoking to beat the third gym leader and you can find a nidoran male on the route you get the running shoes on and a moon stone in Mt. moon
peril cliffs after beating as boss
as so as you find the first switch the secound switch should be write next to it.