This rafting experience is for those looking for an exciting adventure on more challenging waters. The experience usually lasts between 2-2.5 hours and offers participants the opportunity to navigate class III and IV rapids. These rapids are more challenging and require a higher level of skill and experience. Expert guides will provide detailed instructions and ensure that all participants are equipped with the proper safety equipment. What to bring: - Rubber-soled shoes that can get wet (Tevas, tennis shoes, water shoes, booties or similar. - T-shirt (swimming dress) short of a quick-drying material. - Water resistant sunscreen lotion - Straps to secure glasses, if necessary. Do not bring: - Rings, bracelets, watches, chains, cameras or cell phones. Nothing that can be lost in the river. - Flip-flops sandals.