We had a fantastic time with Wave Expeditions. We took the Balsa River Class II & III tour, which was roughly 13 km and two hours long. (See my full trip report here.) The guides were really fun but still put safety first. We were given instructions on the bus and then we practiced following all the commands once we got in the raft. Once we got going down the river, it was non-stop excitement. It was much wilder than I expected for class II & III but that just made it more fun. Our guide Warner knew every rock, …