This tour is the way to experience this unique and gorgeous island if you're not afraid of getting tired, wet and dirty! lol, for real. Seriously, Brian was probably one of the best tour guides EVER, and I've attended a few tours on our travels. He was friendly, thorough but mostly filled with joy and love of Kauai and its natural beauty and he shared that with us, with so much enthusiasm. He really is probably the best guide I've ever come across. The tour itself takes you through the luscious rain forest of Wailea park, along the beautiful Wailea river, for about 2 miles each way by kayak. You stop at a point where you're now hiking about 1.5 miles through tall grasses then trees and gorgeous vegetation (that Brian tells you all about laced with plenty of funny Kauaian 'tall tales' ;-)) following the river, wading through rivers (remember I said you were going to get wet) before reaching breathtaking Uluwehi falls, where you 'camp out' for about an hour or so, where everyone was invited to swim, take photos, drink water and snack (you bring your own provisions, but Duke's provided everyone with 'dry bags' to hold things during the trip) before returning back the same way you came. It was the perfect way to experience the island. It's fine for anyone of normal condition and fitness. You don't have to be an athlete, but if you have mobility issues, or health related problems that prevent you from exerting yourself too much, or moving through uneven terrain, then you should probably avoid this hike. Although, I'd have to say, that would be a sad loss. Highly recommend this tour.