Whitewater rivers are classified based on their difficulty and the level of challenge they present to rafters and kayakers. This classification system, known as the International Scale of River Difficulty (or simply the River Scale), provides a standardized way to communicate the level of technical skill and experience required to navigate different sections of rivers.
Class I river rafting refers to the easiest level of whitewater rapids. These rapids have no significant obstacles, featuring only moving water with some small waves. Class I rapids are perfect for individuals of all ages and skill levels, as they pose minimal challenges. Safety kayaks and experienced guides are not required, although it is advisable to have someone familiar with rivers present. Life jackets should always be worn, even on calm waters. No prior experience is necessary to navigate Class I rapids, making them an ideal introduction to whitewater rafting. This level of rapids can be found on many of our whitewater rafting tours in Peru.
Class II rapids are characterized by their low difficulty level, making them relatively easy to navigate. These rapids do not typically require extensive scouting or preparation, as maneuvering around obstacles is straightforward. While some minor adjustments may be necessary, the challenges posed by Class II rapids are easily manageable. As such, these rapids are suitable for individuals of all skill levels, including beginners.
It is advisable to have a raft master or guide who is familiar with the river to provide guidance and ensure a smooth experience. However, prior rafting experience is not strictly necessary for participants, as Class II rapids are well-suited for recreational and commercial rafting activities.
These rapids can be found in various rivers, offering opportunities for adventurers to enjoy the thrill of whitewater rafting in a controlled and relatively safe environment. While the presence of a safety kayak is not mandatory, it is recommended to have one accompanying the group as an additional precautionary measure.
Moderate rapids are characterized by numerous waves, rocks, eddies, and small holes. While injuries are very rare, and self-rescue is relatively easy, safety kayak or cataract assistance may be required to avoid unnecessary swims. These rapids are suitable for individuals over 8 years old according the Peruvian regulations. However, navigating these rapids requires an experienced raft master with expertise in maneuvering. For commercial white water rafting, prior experience is not necessary, but it is recommended to have a safety kayak and a skilled raft master to ensure a safe and enjoyable experience.
Level IV rapids are characterized by powerful and intense currents that demand precise boat maneuvering in rough waters. These rapids may feature unavoidable large holes and waves, as well as constricted channels and passages that require quick response under pressure. Obligatory moves in difficult situations may be necessary, and self-rescue can be challenging. A safety kayak or cataract is essential, and we strongly recommend having an experienced guide.
You can find Level IV rapids in many of our white water rafting tours in Peru. These intense rapids are present in our Apurimac rafting tours, the Urubamba rainforest section, and the Urubamba river near Cusco during the rainy season (December to April). According to the Rafting Peru – White Water Rules and Regulations, these rapids are suitable for individuals over 18 years old. Previous rafting experience is recommended for navigating these challenging conditions.
Level V rapids are among the most challenging and demanding in whitewater rafting. These rapids are characterized by several factors that contribute to their difficulty. Firstly, the volume of water can vary, with some Level V rapids having a massive flow while others may have less water but still pose significant challenges.
One of the key dangers in Level V rapids is the presence of undercuts, siphons, and powerful hydraulics. Undercuts are areas where the water flows beneath a rock or ledge, creating a hazardous situation where a raft or swimmer could become trapped.
Level V rapids can be either long or short in length, but they are consistently obstructed and turbulent. These rapids often contain unavoidable large rocks, towering waves, and deep holes, creating complex and demanding channels that require exceptional maneuvering skills.
Navigating Level V rapids requires top-quality rafting gear specifically designed for such extreme conditions. Rafters must possess excellent boat control and maneuvering abilities to navigate these treacherous waters safely.
In Peru, rivers like the Apurimac and the Urubamba (during the rainy season) offer Level V rapids. We only offer level V rapids for people over 16 years old of age with previous whitewater rafting experience
Level VI rapids are classified as non-runnable by commercial rafting companies due to the extreme risk involved. Attempting to navigate these rapids carries a significant risk of life-threatening situations. Any errors made while running a Level VI rapid can have severe consequences, and rescue efforts may be impossible in some cases. Examples of Level VI rapids can be found in the Apurimac River and the Urubamba River’s Santa Teresa Aguas Calientes section. Commercial white water rafting is strictly prohibited on Level VI rapids. These rapids are reserved exclusively for expert teams with extensive experience and specialized training.
