Teleports to Ardougne; an Ardougne cloak can be used to teleport relatively close to the Zoo.
Some food if you have to run the gauntlet with thrower trolls. Not necessary if you have the recommended agility level.
Prayer potions again, only if you cannot avoid running past the thrower trolls and if you have the protect from missiles prayer but can't keep it up long enough to run past the thrower trolls several times. Food is probably cheaper though.
Energy potions if your agility level is low. (Lots of running back and forth.)
Enemies to defeat
If you completed the Druidic Ritual or Death Plateau quests before they were reworked on 31 January2012, you must complete the updated versions of those quests before starting this quest unless you go up Trollheim the way near the Fremennik Slayer Dungeon, in which case, doing the new Death Plateau is unneeded, but doing the new Druidic Ritual is still required.