Circuit des 25 Bosses
Overland Track
Circuit des 25 Bosses vs Overland Track: Intensity Score Comparison
Overland Track is unequivocally more demanding overall (+19 points). While Circuit des 25 Bosses is a serious endeavor, Overland Track pushes the limits further, particularly regarding sustained physical exertion.
Model-based (not a field report) · Evaluates overall route demand, not danger.
The 'Circuit des 25 Bosses' (The 25 Bumps) is located in the Massif des Trois Pignons, on the western edge of the Forêt de Fontainebleau. Originally established in the 1970s as a training ground for alpinists, this technical 16km loop remains one of the most demanding day hikes in the Île-de-France region. The trail requires hikers to cross 25 distinct sandstone ridges, involving frequent scrambling over boulders and navigating deep sandy paths. It is an intense physical challenge characterized by constant elevation changes and a unique ecosystem of maritime pines and white sand dunes. Note: Compiled from public sources — not a field report.
The Overland Track is a 65km point-to-point alpine traverse through the heart of the Tasmanian Wilderness World Heritage Area. Running from Cradle Mountain to Lake St Clair, the route passes through dramatic glaciated valleys, ancient rainforests, and high moorlands. Under the management of Parks & Wildlife Service Tasmania, the trail offers a deep connection to Tasmania's unique natural heritage, including the endemic King Billy Pine and high dolerite peaks. The route consists of a mix of well-maintained boardwalks, exposed rocky ridges, and forested sections that can become muddy during sustained rainfall.
Head-to-Head Metric Analysis
HikeMetrics Hazard Scale — Explanation
The HikeMetrics Hazard Scale is a proprietary 5-point classification system that evaluates hiking routes across five dimensions: physical demand, technical complexity, altitude exposure, weather risk, and rescue accessibility.
Unlike generic star ratings, the Hazard Scale is calibrated against altitude profiles, elevation gain per day, and logistical isolation factors — making it the most precise route classification system available.
Full Scale Documentation