Circuit des 25 Bosses

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 Thorsborne Trail is a 32km point-to-point trekking route along the eastern coastline of Hinchinbrook Island, within Girringun National Park, Queensland. Running between Ramsay Bay in the north and George Point in the south, the trail traverses a diverse tropical landscape of mangrove systems, granite headlands, and rainforest. Hinchinbrook is an uninhabited wilderness island, accessible only by organized boat transfers from the mainland hubs of Cardwell or Lucinda. The route follows the Hinchinbrook Channel side and the open Coral Sea, passing significant features like Zoe Falls and the granite peaks of Mount Bowen.