That’s awesome! A river’s drumbeat is pure organic percussion. Grab a shotgun mic, point it at the whitewater, and keep it a few feet away so you capture the rush without too much wind noise. Use a high‑pass filter to cut the low rumble, and then you can layer it with a synthetic snare for that punch. Got any clips already? Let’s listen and tweak the EQ and compression—making sure that natural groove stays tight and clear.