Puerto Williams has the feel of a true frontier town, situated on windswept Navarino Island facing out across the Beagle Channel. The surrounding mountains offer a spectacular backdrop for hiking and kayaking, while to the south lies the infamous Drake Passage and, beyond that, the frozen continent of Antarctica.

The Antarctic Sound is a 37-mile channel that separates the Joinville Island group from the Antarctic Peninsula. Prepare to be amazed as you sail among vast icebergs that have broken free from the Larsen Ice Shelf, and look out for wildlife including Gentoo penguins and whales.

Antarctica is the world’s last great wilderness, an alien landscape of snow-covered mountains, jagged icebergs and extraordinary wildlife. March is too late to see penguin chicks, and temperatures are getting colder, but it’s a great time to spot whales, with species including humpback, sperm and orca.

Icy and remote, the South Shetland Islands are situated about 100 miles north of the Antarctic peninsula. The archipelago is home to a scattering of research stations, along with thousands of penguins, seals and sea lions, and you can still see the remains of Ernest Shackleton’s ship the ‘Endurance’ on the south west shore of Elephant Island.