Lava Trail

The Lava Trail, also known as Lava Ravine, or Trail Of Lava, is a hidden anomaly deep into the Underground Grove and is the inline trail of the Volcano.

This place doesn't have any significance, nor does it contain any feature except lava and void. The trail doesn't go in a complete circle and stops at a complete dead end with a brown wall, with a small ramp going upward somewhere.

The height of the trail is very high up, and cannot be climbed.

The trail gives damage just as the Volcano Obstacle does, and it's very hard to avoid not getting damaged because only certain areas can be considered safe (It's not wise to bring an important axe down here)

Accessing The Trail
The trail is very hard to get into, more so than any other feature in the game, including the Green Box, as it only can be accessed through the Green Box's location upward, or through the Underground Grove. (You will need 2+ players to get into the trail)
 * The Green Box, look upward, use 2 planks with your friend to do the flying glitch, and then you're immediately there.
 * The Underground Grove, using the same way to get to the box technique. See here.