We ranted down the Naranjo and Savegre Rivers. What an adventure! That time of year the rivers were class III and offered both adventurous rapids and relaxing parts too. I wore a bathing suit and swim shorts and water proof shoes and was comfortable. I have to mention the guides on this review also. They all had great personalities and were very funny. That's one thing I can say about Costa Rica... The people are so friendly! At the end of the tour expect wonderful cut up fruit eaten in the rain forest.