Fodor's Expert Review Erratic Rock

For anyone seriously contemplating trekking the W or the full Circuit around Torres del Paine, the Erratic Rock hostel in Puerto Natales offers a free seminar on how best to make the journey. Rustyn Mesdag, the hostel's Oregonian co-owner, is a rambunctious, opinionated guide who gives the not-to-be-missed "Three O'Clock Talk" describing all the routes, tips, and tricks you need to complete one of South America's most challenging treks. His hour-long presentation to a room full of eager hikers starts promptly at 3 pm every day of the high season, and is full of advice on camping, equipment, food, and provisions, including the latest reports on weather and trail conditions inside the park. It's a great introduction to possible trekking partners, as CONAF doesn't allow you to complete the walk on your own. The irrepressible Mr. Mesdag also publishes the ubiquitous Black Sheep newspaper in English.