well first you should know what a sledge is...
Sledges are used to transport material across the ice, usually pulled by Ski-Doo machines. These are working sledges, not recreational sledges.
Husky packs towing sleds/sledges are mainly used for transportation around Antarctica.
on sledges, walking, and they got there by boat
He used 3 sledges and 52 snowdogs
Sledges are used to transport materiel and supplies on the Antarctic ice sheet.
He took dogs and horses on his expedition
Sledges offer the most logical means of transporting equipment and supplies on the ice. They move easily on their runners, can carry loads that exceed their own weight and can be pulled by Ski-Doos to remote locations.
Because huskies pulles the sledges that they used to get around in. And they were also used for hunting down animals for their owners.
Scott and his team trekked, pulling loaded sledges. This type of travel is called 'man-hauling'.
He brought motor sledges with him and ponies, warm clothing, food supplies and oil to Antarctica. On his trek to the pole, they depended on the foodstuffs and shelter they could include in their sledges and counted on finding more supplies at pre-laid depots.
Scott traveled to Antarctica as the leader of the British Antarctic Expedition in 1910. He and his team sailed to Antarctica on the ship Terra Nova, which brought them to their base camp at Cape Evans. They then used sledges and dogs to travel across the continent to the South Pole.
Ronald Amundsen used 3 sledges and 52 dogs to get to the South Pole.