Cataclysm will be bringing a lot of new things to the game World of Warcraft. It will also be bringing back a few old things, such as access to Mount Hyjal.  The last time the legendary area was available to players was through the raid instance “Battle of Mount Hyjal” in the Burning Crusade.  Now in Cataclysm players will be able to more fully explore the zone that houses the World Tree, Nordrassil  Join Byron “Messiah” Mudry as he gives you the basics about this ambitious zone.

Eventually you even get a chance to disguise yourself as a Twilight Hammer minion and wreak havoc in their camp.  This all takes place in the Darkwhisper Gorge at the behest of the Ancients who provide guidance and assistance as you attempt to lay waste to Ragnaros’s plans.

You can read all about in Thin Air – Climbing Mount Hyjal.