December through February (southern summer) offers the warmest weather and longest daylight for trekking and wildlife tours. Spring (September-November) and early autumn (March-April) work too, though conditions can be windier and more unpredictable. Winter visits are possible but expect cold, shorter days, and some tour cancellations - check before you go.

Multi-day treks like Dientes de Navarino and Torres del Paine fill weeks in advance during peak season. Private charters and guided hikes can book out 2-3 months ahead. If you're traveling December-February, reserve at least 4-6 weeks prior. Shoulder season offers more availability with shorter lead times.

Torres del Paine works well as a self-drive if you're comfortable with remote roads and have the right vehicle - many travelers do exactly this. For wildlife spotting (penguins, whales, sea lions) and technical hiking like Dientes de Navarino, a guide really matters; they know where animals gather and manage logistics on difficult terrain. Guided multi-day tours handle meals and camps, which simplifies things considerably.

Most international arrivals fly into Punta Arenas, though you can bus from other Chilean cities if you have time. Many tours include transfers from town to start points like Puerto Natales or trailheads - check what's covered when booking. For remote spots like Magdalena Island penguin safaris, you'll depart directly from Punta Arenas waterfront.

4-day and longer tours usually bundle accommodation, meals, park fees, and guided hiking. Private charters and specialized treks (like the 7-day Dientes de Navarino) include guides and equipment - check the exact inclusions with your operator. Some self-drive options are just vehicle rental; you source your own lodging and food.

Short shore tours and Magdalena Island penguin cruises work for most ages and fitness levels. Multi-day treks demand real stamina - the Dientes de Navarino hike is serious backcountry, while Torres del Paine varies from moderate to strenuous depending on which routes you pick. Check difficulty ratings and speak with outfitters about what suits your group.

Patagonian weather is famously moody - wind, rain, and sudden sun shifts happen in the same afternoon. Layer heavily, bring waterproof jackets and pants, sturdy hiking boots, and a hat. Even in summer, temperatures hover around 10-15°C (50-59°F). Tours typically list gear requirements; some provide equipment for multi-day hikes.