The only Wailua river tour operator we could find in this time of Covid, but completely fabulous. Our guide Ryan was knowledgeable, interesting, and eager to point out interesting sites along the way. It ended up just being the four of us and the only people we saw on the trail were the workers installing a new boardwalk and fire and rescue personnel performing practice exercises. Along the entire river there and back we saw one SUP and one other kayak. We had the falls to ourselves for a half hour before another family turned up. It will get more crowded once the island open back up to outside tourism, but I'm sure Ali'i will still provide a memorable and thoughtful experience. read more