We did this tour the last day of our Kauai vacation, and it was a great way to end the week. Tom was a great guide - very knowledgeable about the flora and fauna. I recommend taking the morning tour as we did. The area at the falls gets very crowded. By the time we were leaving, there were so many tour groups + individuals who rented SUPs/kayaks. When we made the reservations, only tours were allowed on the river, but that has changed. It would be helpful for the groups to stagger a bit, so you don't end up paddling with a giant group, but it was still a worthwhile experience.