We visited the falls in June and decided to make a reservation in one day excursion on both sides of the waterfalls with tour guide Marcelo. From the first moment of the tour we realized that we were dealing with an amazing tour guide. The tour and the knowledge really impressed us. It was one of the nicest tours I've done a really terrific professional guide from Marcelo. We highly recommend him. Thank you very much. Obrigado Marcelo!!!!