The eastern approach from Greyneys Shelter takes about five hours; the western approach from Morrisons footbridge is listed at eight to nine hours and includes riverbed travel, scrambling and boulder hopping. The Deception River section has up to 30 compulsory crossings, and timing varies with river conditions. Do not attempt the route during or after heavy rain, when levels can rise quickly. Goat Pass can be extremely cold; summer, autumn and early winter are generally the best seasons, while winter snow can bring avalanche risk.