Book excerpt: Once again, Let's Go's young and budget-savvy researchers have left no stone unturned to bring you the real deal on one of the most culturally rich and dynamic countries in the world. Completely revised and updated, Let's Go Mexico features expanded coverage of art, culture, and nightlife, as well as unrivaled information about ecotourism and how to be a socially conscious traveler. This year's guide also has the inside scoop on why to skip Cancun, but why Copper Canyon is a necessary stop to round out any trip to Mexico. So whether you'd rather explore the largest national reserve in the world or relax on the untouristed beaches of Bahio Kino, Let's Go can show you the way to what's fun, what's fresh, and what's free.