Pine Town Mines

The Pine Town Mines are only accessible via Pine Town, and the Gym Leader will only battle you here. There are five War Party Members in the mines who are attempting to awaken "the legendary Pokemon in the mines." Only three of them will battle you.

Wild Pokemon
Walking: Surfing:
 * Bergmite (Lvl. 32)
 * Glalie (Lvl. 32)
 * Wartortle (Lvl. 31-34)
 * Gothorita (Lvl. 31-34)
 * Marill (Lvl. 32)
 * Dewgong (Lvl. 34-35)
 * Cloyster
 * Wartortle

Trainers

 * 3 War Party Members

Items

 * TM79 Frost Breath

Notable NPCs

 * Pine Town Gym Leader Elroy

Gym Leader Elroy
Elroy asks for you to battle all of the War Party members in the Mine before he will battle you for the gym badge. He battles you immediately after talking to him instead of in his gym, and decides to stay there once you have defeated him.

Elroy has three pokemon: a lvl 35 Beartic, a lvl 35 Glaceon, and a lvl 35 Cryogonal. You receive $3500, the badge, and TM79 (Frost Breath) for defeating him.