Laguna de los Tres
The classic Fitz Roy day hike. It is long, exposed and physically demanding, so keep a suitable weather day available rather than locking every hour of the trip.
Laguna Torre
A full-day valley hike toward Cerro Torre with a different landscape and generally less brutal final climb than Laguna de los Tres.
Short viewpoints
Mirador de los Cóndores and other shorter walks are excellent arrival-day or poor-weather options.
Mountain-town rhythm
The town is compact. Restaurants, gear shops and trailheads are close enough that a car is unnecessary for the standard trekking visit.
The practical rule
Do not pre-book every hour. Patagonia rewards a plan with one or two protected priorities and enough flexibility to move weather-sensitive activities.