Your answer depends on your ultimate Antarctic destination.
Your answer depends on where in Antarctica you choose to dock, the speed of your boat and the route you choose.
The route you describe is one route. That would be the probably route to the Antarctic Peninsula. It depends on where in Antarctica you want to go. Another route would be to go to New Zealand from England on one plane, then find other transportation to Antarctica. Finally, if you sailed in a boat, you could go to almost any landing spot on the continent from most anywhere in the world. But that's not a very practical idea, since Antarctic waters are not too navigable.
To travel from England to Antarctica, you would primarily cross the Atlantic Ocean and then the Southern Ocean. Depending on your specific route, you might also cross parts of the Indian Ocean if traveling from certain points. Overall, the journey typically involves navigating these significant bodies of water to reach the southern continent.
England is different to Antarctica in being slightly warmer for parts of the year.
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Your answer depends on the route you take to your ultimate Antarctic destination and the speed of the boat.
Yes, you can.
Depends on your route.
En route, but not that far
The flight would be 21 hours long.
Your answer depends on the route you take, your ultimate Antarctic destination and the speed of your transit vehicle.
Your answer depends on where in Antarctica you want to go, and your mode of transportation, plus the route you choose.