Trailsplus - Unbreakable - Marysville
Marysville, Australia • 5-7 Jun 2026
Unbreakable Mountain Trail Run - Marysville
Unbreakable is an Australian mountain trail event held over a weekend in the Marysville region. The event was first staged in 2021 and is explicitly inspired by the Barkley Marathons. It adopts unconventional race concepts rather than typical marked-course formats.
Runners navigate largely unmarked terrain using a map and compass. The format requires participants to complete laps and to locate books on course; from each found book a page matching the runner's bib number must be torn and surrendered on lap completion to be allowed to continue. For those who complete all required laps, the total is five laps. Individual lap lengths are described as approximately 30-50 km and lap time cutoffs are given in the range of 8 - 12 hours.
Entry involves specific requirements that are not fully detailed publicly; the event is described as selective in ways not specified. Fees for 2026 are published in tiered stages, with listed amounts ranging from $300 to $450 depending on the registration period.
Trailsplus also directs a charitable contribution: each event donates $1 per participant to Canteen, and Trailsplus has recorded total donations in excess of $80,000. Visit the organization's website for the most recent information.