The crew members test their mettle during 2013’s Shackleton expedition re-enactment, as South Georgia’s challenges lay ahead.

Tim Jarvis arrests himself after a treacherous fall.

The crew in period attire aboard the Alexandra Shackleton, a direct replica of Shackleton’s vessel.

Spectacular scenery masks dangers below the surface.

Barry “Baz” Gray and Tim moments after Baz fell in a hole on Fortuna Glacier.

Cameraman Ed Wardle fine-tunes his equipment for the challenge ahead.

The seas building to a fever pitch reminded the crew of the size of their diminutive boat.

A man’s best friend: Shackleton’s ship and his dogs on ice.

Baz looks for a way down off a rocky ledge – a brief respite in the steep and dangerous descent off Breakwind Ridge.

Calmer weather draws small smiles from Baz and Nick Bubb.

Master craftsman Nat Wilson works on the Alexandra Shackleton at a traditional boat show.

Two members of 2013’s Shackleton expedition re-enactment keep warm in ‘Travis’ Cave.