Beagle Channel
Navigation trips reveal the city from the water and typically combine islands, birdlife, marine scenery and lighthouse viewpoints depending on the route.
Tierra del Fuego National Park
Only about 12 km from Ushuaia, the park combines forest, mountain, lakes, peatlands and coast. It can be explored independently or with tours.
Trekking
Ushuaia has a wide range of walks around valleys, forest and alpine terrain. Conditions vary significantly by season and recent weather.
City history
The maritime and former-prison history makes the city itself worth time, especially on a poor-weather half day.
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.