We took out at Pearce Ferry in June. The road is paved and well-maintained. There is a scat machine/ restrooms/ large de-rigging area/ and a little town within 20 miles (maybe less?).
We walked down to check out the rapid- it is a nasty beast. Everyone in my party agreed that it is potentially runnable on the left with a strong oarsman; it looks more challenging than anything else on the Grand. It also appears possible to line the boats on the right over a 14' pourover drop with a fairly large FU rock below it.
The current stops just below the rapid though, so with the nice new TO at Pearce Ferry, I don't see a reason to go to South Cove.
"There is NOTHING--absolute nothing--half so much worth doing as simply messing about in boats. Look here! If you've really nothing else on hand this morning, supposing we drop down the river together, and have a long day of it?" -Wind in the Willows