Packrafting on Kuaui in Hawaii. Wailua River or other options

Taking a trip to Kuaui at the end of January and debating whether or not to bringing our rafts. A friend recommended kayaking the Wailua River but I wondered if it might be doable with packrafts instead. The kayak rental place talks about permits as well. Does this apply to private crafts or just the rental companies? Hoping someone knows about or has done this and can make recommendations.

Dan

Sounds fun. Did you get a reply?

packrafted waimea river at ~1000 CFS last spring, class III at that level, highly recommended.