Ushuaia Argentina

Usuhaia ship

Summer is a good moment for visiting Ushuaia. You will be literally at the end of the world.
Options in land includes: treking and walking in nature, birdwathcing, riding horses, and mountain bike.

Once there you can visit Parque Nacional and Lago Escondido plus Corazón de la Isla.
Water related excursions, have: Beagle Channel, and kayak excursions

Ushuaia is entrance door to Antartic and 95% of touristic world traffic takes off from that port.

Esquel Argentina

Esquel is located in Chubut state. If you visit San Carlos de Bariloche you must still travel to south, what means you will cross the whole Río Negro state to get into Chubut.

Esquel is located at north west of Chubut some 1980 km from Buenos Aires.

You can travel in Via Bariloche bus either from Buenos Aires or San Carlos de Bariloche.

Also Andesmar goes to Esquel.

If you prefer to take a flight, Aerolineas Argentinas or Lade are available options for this trip.

Esquel has lot of snow in winter and beautiful lakes as the one in the photo: Futalaufquen lake.