Your answer depends on the length of the tour. The majority of time spent aboard a tour-ship, for example, is taken in transit. The time on the continent is limited to time away from the ship, which provides all accommodation and meals to Antarctic tourists. Generally, this is a limited number of days and only during the day.
No tourist 'stays' in Antarctica. Tourists visit Antarctica on tour boats, where the sleep and eat. An occasional partial-day trip to the continent may be in order, depending on the weather, the tide and the season by way of a zodiac boat.
1 second and then there out of there!
Tourists who visit Antarctica by ship stay on board the ship. There are no commercial accommodations anywhere on the Antarctic continent.
Tourists to Antarctica 'stay' aboard the cruise ships that take them there. This is allowed by the Antarctic Treaty.
Tourists to Antarctica maintain residency on the ships used to travel to the continent. There are no commercial facilities on the Antarctic continent.
There are hardly any tourists that go to Antarctica
There is no evidence in the argument to limit the number of tourists in Antarctica.
The tourists go to Antarctica during the summer or the winter
Generally, tourists go to Antarctica to tour -- it is the most exotic visual landscape on earth.
Tourists may want to earn bragging rights to say that they've been to Antarctica.
Tourists visiting Antarctica are housed aboard the ships used to sail them to the continent. Tourists who charter private expeditions to the continent bring their own tents and other equipment for shelter from this extreme environment. There are no commercial tourist facilities on the continent.
There is no disadvantage to any continent caused by tourists.
12 hours