Although there is an International River Grading System (see below), we have a useful description to help you know which river trips you could consider attending.
Easy (River) Trip – Suitable for beginners who have done forward paddling, capsize drill etc. E.g. someone working towards 2* standard and covered the basics. Easy rivers are typically Grade 1. May also suit anyone who fancies a nice paddle!
Improver River Trips – A trip on moving water where you can learn breaking in and out, ferry gliding etc. You will already have the basics of support strokes etc. Typical rivers are Grade 2 such as the Teith, Tay (above Grandtully), Ayr.
Intermediate River Trips -A more demanding river where the challenges are more than the improver trips. Typical rivers are the Awe, Nith, Tay (Stanley to Thistlebrig) (See Grade 2/3 below)
Advanced River Trips – Harder trips typically organised via the Whatsapp or email rather than the calendar. Rivers may include the Middle Orchy, North Esk etc and are Grade 4(5).
International River Grading System
Moving water, unobstructed and without technical difficulties. There may be small waves and riffles to challenge the paddler.
Waves, small stoppers and other minor obstructions to avoid. Eddies and cushion waves may be strong.
Waves, stoppers and technical difficulties are more severe. There may be drops and powerful constrictions. The main distinguishing factor of Grade 3 water is that the paddler will have to follow a recognisable route to avoid obstacles and hazards.
Severe waves, drops, stoppers and other obstructions. The route is not easily recognisable and will usually require careful inspection from the boat or bank. Grade 4 encompasses a wide range of rivers, from those with pool-drop rapids to those with extended continuous rapids; so there is a huge variation in difficulty. It is common to distinguish easier grade 4 rapids by grading them as 4- and harder rapids as 4+ (or in some cases, 3/4 or 4/5).
Extremely difficult rapids with precise and technically demanding routes to be followed. Stoppers, currents and waves will be powerful and inspection is essential.
All of the above carried to extremes. Grade 6 usually means unrunnable rapids, which may just be possible in certain conditions.