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Dynamic versus static/semi-static

Semi-static ropes are most suited to canyoning, offering far greater control when abseiling and prusiking. They are dangerous for lead-climbing, but if this need arises (for example, if a rope gets stuck) tying three or more knots next to the harness will increase the dynamic nature of the rope a little.

Colour

Ropes of differing colours would be an advantage to aid with untwisting them before pulling through.

The final encased section in Fogarè Inferiore (Route 62 in the Belluno Dolomites)

Diameter

The diameter affects the weight and durability of the rope. Thick ropes (>10mm) have a longer life span, but are heavy when wet and take up more space in bags. On the other hand, the bounce on thin ropes is greater, thus increasing the sawing action over sharp edges – beware!

Flotability

A few manufacturers produce special canyoning ropes that float, with obvious advantages. However, they are made of polypropylene rather than polyamide, which takes less punishment before breaking. Polypropylene melts at about 160°C and must therefore be used wet.