A subterranean grotto with plants and a stream.

A cave in a twisting maze of valleys leads to a cool grotto. Plants climb up the walls and hang from dripping stalactites; this is a veritable subterranean garden, lit by glowing mushrooms, with a stream winding its way through it; insects and tiny frogs live among the plant life, and small, blind cave fish swim in the stream.

At the back of the grotto is a passage deeper into the earth, in which marks of some large predator’s passing may be found.