Several tour operators run trips along the Canal Beagle, on which you can get a startling close-up view of sea mammals and birds on Isla de los Lobos, Isla de los Pájaros, and near Les Eclaireurs Lighthouse. Catamarans, motorboats, and sailboats usually leave from the tourist pier at 9:30, 10, 3, and 3:30 (trips depend on weather; few trips go in winter). Trips start at US$50 and some include hikes on the islands. Check with the tourist office for the latest details; you can also book through any of the local travel agencies or scope out the offers yourself by walking around the kiosks on the tourist pier.
Ushuaia, Tierra del Fuego, 9410, Argentina