About 30 kilometers east of San Gregorio, paved Ruta 257 leads southeast to Punta Delgada, the ferry port for the Tierra del Fuego via the Primera Angostura narrows. Depending sometimes on tidal conditions, the ferries Fueguino and Pionero shuttle across the channel every 1.5 hours 8:30 a.m.–11 p.m. Fares are US$2.50 per person for passengers, US$1.25 for kids ages 10–14, US$22 for automobiles, and US$6.50 for motorcycles. Buses to Argentine Tierra del Fuego use this route because the longer ferry to Porvenir goes only once daily and is subject to delays or cancellation for rough seas.

At the highway junction, Hostería Tehuelche (tel. 061/1983002, US$35/60 s/d) was once the casco (big house) for the British-run Estancia Kimiri Aike; now, November–May, it offers satisfactory but arguably overpriced accommodations in huge rooms with shared bath. Buses between Punta Arenas and Río Gallegos often stop here for lunch; breakfast, dinner, and snacks are also available. The Barros Luco sandwich can be good, but insist that they hold the mayonnaise.