Excellent tours organized by an expert Austrian hiker based out of Casa Chueca in Talca. Trekking Chile also runs 10-day tours from Constitución (on the coast) to Altos de Lircay and across the Andes to Argentine Patagonia using electric bikes (inquire for pricing). A one-day version of the e-bike trip to Laguna del Maule costs CH$45,000.