Cape Lisburne from the bridgewing of the Bureau of Commercial Fisheries Ship BROWN BEAR.

A Bering Sea sunset from the Bureau of Commercial Fisheries Ship BROWN BEAR.

The Bering Sea kicking up a little bit. On the Bureau of Commercial Fisheries Ship BROWN BEAR.

Cape York from at sea.

A drift buoy with radar reflector for studying surface currents.

A rolly day on the BROWN BEAR.

The shore at Point Hope

Huskies and whale bones at Point Hope

Deploying a Van Vehn grab sampler from the Bureau of Commercial Fisheries Ship BROWN BEAR.

The bow of the Bureau of Commercial Fisheries Ship BROWN BEAR.

The edge of the pack ice.

The edge of the pack ice.

The harbor at Montevideo

The harbor at Port Stanley The beginning point of HMRS SHACKLETON Antarctic cruise

A view of the harbor The beginning point of HMRS SHACKLETON Antarctic cruise

Cruising in Lemaire Channel. 65 05 S Latitude 64 00 W Longitude.

Cruising in Lemaire Channel. 65 05 S Latitude 64 00 W Longitude.

Cruising in Lemaire Channel. 65 05 S Latitude 64 00 W Longitude.

Cruising in Lemaire Channel. 65 05 S Latitude 64 00 W Longitude.

Cruising in Lemaire Channel. 65 05 S Latitude 64 00 W Longitude.

The north shore of Peltier Channel. 64 52 S Latitude 63 32 W Longitude.

Ice in Peltier Channel - large white ice berg is 50 to 100 feet high. 64 52 S Latitude 63 32 W Longitude.

The first iceberg seen during the expedition

Passing an iceberg on a gray day

Mountain peak illuminated by midnight sun at Port Lockroy. 64 50 S Latitude 63 30 W Longitude.

The abandoned base at Port Lockroy. The SHACKLETON came here to remove equipment. 64 50 S Latitude 63 30 W Longitude.

Boat from the SHACKLETON making its way through the ice at Port Lockroy. 64 50 S Latitude 63 30 W Longitude.

Cornwallis Island. 61 04 S Latitude 54 28 W Longitude.

Elephant Island in the distance - island Shackleton left from on 800 mile open boat trip to South Georgia Island. 61 10 S Latitude 55 14 W Longitude.

Passing through Peltier Channel. 64 52 S Latitude 63 32 W Longitude.

A promontory on Bridgeman Island. 62 04 S Latitude 56 44 W Longitude.

Approaching Elephant Island. 61 10 S Latitude 55 14 W Longitude.

A whaler's cemetery on Deception Island. 62 57 S Latitude 60 38 W Longitude.

Harley Nygren warming his hands on a seaside fumarole on Deception Island. 62 57 S Latitude 60 38 W Longitude.

Dogs on deck at British Base F

Old British Base F on Winter Island

Skin divers getting ready for a dive off the SHACKLETON.

A little survey work on Avian Island. 67 46 S Latitude 68 54 W Longitude.

A breathtaking view from Avian Island. 67 46 S Latitude 68 54 W Longitude.

Another view from Avian Island - SHACKLETON in the distance. 67 46 S Latitude 68 54 W Longitude.

British Base T on Adelaide Island

Looking ashore from Marguerite Bay. 68 00 S Latitude 68 30 W Longitude.

The SHACKLETON temporarily stuck in the ice at Marguerite Bay. 68 00 S Latitude 68 30 W Longitude.

Neny Island - still unapproachable through the ice of Marguerite Bay - 68 12 S Latitude 67 03 W Longitude. Furthest point south reached by the SHACKLETON in the summer of 1962.

Measuring distances with a tellurometer on Avian Island 67 46 S Latitude 68 54 W Longitude.

Cape Alexandra on Adelaide Island. 67 45 S Latitude 68 36 W Longitude.

Grytviken, a whaling base

Looking toward the mainland from the top of Galindez Island. 67 15 S Latitude 64 15 W Longitude.

Looking NW from the top of Galindez Island. 67 15 S Latitude 64 15 W Longitude. The SHACKLETON in a maze of ice and rock

Traversing Antarctic Sound next to Larsen Ice Shelf - on the east side of the Antarctic Peninsula.