Trail Running in Bibbulmun Track

Almost nobody runs the Bibbulmun Track end to end in one go. The way Perth locals actually use it is as a rotating menu of day sections, driven from the city on a Saturday morning and run point to point with a second car, or a friend, dropped at the far trailhead. The Kalamunda to Mundaring section is the default starting point because it is 30 minutes from the CBD and short enough to run before lunch. Runners preparing for bigger efforts, like the Bibbulmun Track Ultramarathon or the Delirious West 100 Miler further south, use these northern sections as long run training blocks through the winter and spring months, when the jarrah forest trail is firm underfoot rather than baked hard.

South of Walpole, section running becomes an overnight logistics problem rather than a distance problem. The track's staged campsites, spaced roughly 15 to 20 km apart, mean multi day section runners can carry a light pack and sleep in a three sided shelter instead of a tent, refilling water from rainwater tanks that the Bibbulmun Track Foundation maintains at each site. The catch is that tank levels drop through a dry summer, so anyone stringing together two or three sections in the karri forest between Walpole and Albany should check the Foundation's water reports before committing to a hut to hut itinerary, and always carry a filter or purification tablets as a backup rather than assuming a tank will be full.

The biggest adjustment for runners new to the Bibbulmun Track is not the hills, it is the surface. Long stretches of the northern sections run over loose red sand and pea gravel laid down on old management tracks, and both surfaces eat pace in a way that firm singletrack does not. A runner who holds an easy pace on packed trail elsewhere around Perth will often find the same effort produces a noticeably slower result on sandy sections near Kalamunda, simply because the foot slides slightly on push off. Forcing the usual pace on sand is the fastest way to trash your calves before the halfway point of a long training run.

Further south, the surface flips. Sections through the karri forest and coastal heath near Walpole and Albany firm up considerably, with hard packed earth and occasional root systems replacing the sand, so runners who paced conservatively through the north often find they have more left in the tank for the final coastal stretch into Albany. The lesson locals apply is to plan effort, not pace, across a long section run, treating the sandy northern kilometres as the hard part of the workout and expecting the firmer southern surfaces to feel comparatively fast, rather than pacing evenly by the kilometre and being surprised when the numbers do not match.