The Beagle Channel is a dramatic waterway, 240 kilometres long and carved out of the earth by retreating glaciers during the last ice age.
At its widest, the channel stretches five kilometres and separates the islands of the Tierra del Fuego Archipelago, in extreme southern South America.
Cruise along the Avenue of the Glaciers, a procession of ice flows on the north side of the water named after the countries that had charted and logged each one in detail. So you'll start with Romanche, followed by Germany, France, Italy and finally France.
Sit in awestruck silence as you listen to great chunks of ice crash into the sea below. This stretch is one savage, beautiful glacier after another, cascading down from the Darwin Mountain Range. Birdlife is abundant, with albatross, sheathbills, cormorants and penguins on show. As sea lions and seals swim alongside, keep an eye on the sky for the Andean Condor, which has been known to make an appearance.
You'll soon reach Pia Fjord, located beside the northwest arm of Beagle Channel, on the Chilean side of Tierra del Fuego. The head of Pia Fjord has two glaciers, the main being Pia Glacier, which is very active and will hopefully be calving while you are there.