Scout Seidell's from river right, far above the rapid itself (look for tied up boats and/or path at the end of a long flat stretch) it'll be a nice hike to the overlook. You won't get munched at this flow, just start from the left and move to the right, punching a small lateral that'll want to surf you back to the middle above the main hole. I've seen paddleboats punch it at 1000 cfs and do fine.
When in doubt, scout,
Nothing in the world is more yielding and gentle than water. Yet it has no equal for conquering the resistant and tough. The flexible can overcome the unbending; the soft can overcome the hard. - Lao Tse