Scorched Sparks Cavern first appeared in the "The World Beneath Our Feet Part 2" when it was used to host a round of Slugslinging matches.
The cavern is made primarily of bare rock with deep chasms carved by -- and still filled with -- lava. This is one of the first caverns that Eli sees when he arrives in SlugTerra. According to Pronto, Scorched Sparks Cavern, with its semi-predictable eruptions, is one of the safer caverns.
The cavern supports a population of Lavalynx Slugs.
Scorched Sparks Cavern appears as a level in the game Battle for SlugTerra.