We just visited this weekend for our first time, with some seasoned pros who have rode the cove countless times.
It's awesome scenic riding with plenty of shady spots to let the kids skip stones in the water.
We managed to get through with a buggy, Cherokee buggy thing, pathfinder buggy thing, modestly built TJ, and modestly built LJ without incident. It's not hard riding, just easy and scenic.
I'd post some waterfall riding shots or videos if we had done anything like that, but we just stuck to the trails outside of the creeks and crossed only when necessary