Event Overview
WTF 50 & 100 Miler (Waterous Trail on Foot) is an annual ultra event held on the King’s Birthday long weekend in September, based at Nanga Bush Camp about 10 minutes south of Dwellingup, WA. For 2026, the event is listed for Saturday 26 September, with a 6:00am start. Solo options include 50km, 50mi and 100mi, and relay categories are offered for 50mi and 100mi.
What the Course Demands
The event uses three legs that start and finish at Nanga Bush Camp, with repeated out-and-back running across the longer distances. Course information describes substantial elevation gain across each leg, making sustained climbing and descending a central demand. Navigation is treated seriously: runners are required to carry a Telstra mobile phone and have the relevant GPX file available for offline course-following, with course marking used at key intersections.
Who This Event Suits Best
This event suits experienced trail ultra runners who are comfortable managing long periods between aid locations and who can stay organised with mandatory gear and navigation requirements. It is also a practical option for teams via the 50mi and 100mi relay formats, where runners change over at aid stations and must arrange their own transport between points on course.