Elemental River - [42 x 24] (Patreon)

Deep in the jungle, the gnawing teeth of erosion have slowly begun to uncover the stones of a long-dead elemental, or so it seemed. One of the palms, etched with arcane symbols and still flush with crimson crystals, pulses with energy, while the other (which seems to be missing crystals in one side) lay dormant. 

And the middle of the river swirls and churns, the ebb and flow of something that resembles the heartbeat of something monstrous comes from the depths below.

Where does it lead?  And how would one get there? 

Image released under https://creativecommons.org/licenses/by-nc/4.0/