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.