Hiked along the creek one muggy, overcast day in Sept. It had rained recently, so the creek was high and the waterfalls were surprisingly loud and impressive. At times like these, "creek" doesn't seem like quite the right word for Onion Creek. The flora was also nicely lush and green, including trees growing out of natural tanks in the rock. It's not a difficult trail, though a little rough, and it gets pretty crowded, so this is not the spot if you're looking for solitude.