Search bushes in the Snowy Crater to find the entrance to the underground caverns that Otto the Geologist has been searching for. You'll probably need to whack a lot of bushes before you will find it.

JitEQuests - TSEntrance

Zone Received In: The Snowy Crater

Previous Quest: Exploring the Crater

Stage 1: Whack Bushes (0 Bushes Whacked)

Stage 2: Consult with Dr. Otto

Rewards: 300xp (!)

Next Quest: Mind the Gap

Questline: Journey into the Earth...

Note: It will take whacking roughly 190 bushes (at Level 60) in this Map Zone to complete this Quest.