Here we find a Hiker and give him 6 mountains to climb. After a bit the Hiker calls for new mountains or a new Hiker, and we repeat.

Trailheads
http://fgts.jp/vp/
http://pastebin.com/0bYpM0at ded

Expeditions
http://booru.showderp.com/

The Current Hiker
jimml

The Current Climb
http://play.pokemonshowdown.com/battle-ou-310240069