Go to the entrance to Grobb ( -197, -82, -902 ) /waypoint -197, -82, -902 and await the alligator infestation.
Almost immediately you will be attacked by an affronted swamp feeder and a vengeful swamp feeder. Followed by an irate swamp feeder and a wrathful swamp feeder. Followed by an angry swamp feeder, a furious swamp feeder and an enraged swamp feeder. All three encounters are level 79 mobs.