How do cross this gap at the sulferous waste

I was running around looking for chest and saw a chest that cant be reach. So I go around and found an NPC with quest but I cant find a way to go across.

You can drop the pillar in that picture to make a bridge.

Enter a Junundu and have enough Adrenaline for Junundu Smash, just use it right next to the pillar (on the sulfur) and then it drops.

Thanks for the answer. I've never though of that before since there is no name tag when press alt key.

Its hidden. Just make your Wurm use the Smash skill near it to knock it over. And there you have it.

It doesn't show up as a ALT feature because its a hidden feature.

There's two relatively easy quests on that side as well.