Sulfur burps are burps that have a foul, rotten egg smell. They happen when there's a buildup of hydrogen sulfide gas in the ...
A likely misunderstanding of the display as blue lava, instead of ignition of sulfur gases released from ... flare up brightly in a beautiful blue flame, rising as high as 16 feet.
you can also look for Sulfur locations near the Ancient Spire or glide your way past the enshrouded area. The image above is a bit confusing since the fast travel point in the image is a self-made one ...