
Participate in a polar plunge
If you've not participated in a polar plunge before, you're in for a real treat. During this experience, you will get into your swimsuit and brave Antarctica's coldness to hop right into the water, even if it's only for just a few seconds! Though the water is frigid, it's often seen as a rite of passage to do this at least once during your Antarctica cruise. Don't worry; there will be kind people waiting with a warm jacket and a cup of hot chocolate for you as soon as you get out of the water! This might be a bit of an adventurous experience, but it will be one that you'll never forget.
You Should Know
It can be a bit of a shock to feel the cold water against your body, but just take deep breaths because it's not that bad! 
See penguins
Seeing the Emperor penguins is an absolute must during your trip to Antarctica. You will most likely see them during your Antarctica cruise, whether you'd like to see them or not. They are the most popular penguin species in Antarctica and the Adelie Penguin and the Chinstrap Penguin. Many penguin-watching excursions are offered throughout Antarctica, but they are most commonly seen at Snow Hill near the Weddell Sea, especially if you'd like to see the Emperor Penguins in person.
You Should Know
If you do happen to see penguins in their natural habitat, be respectful and kind because this is their home. It's okay to take pictures, but don't get too invasive. 
Cruise through the Drake Passage
During your Antarctica cruise, you may go straight through the Drake Passage. This passage is notoriously known for being dangerous and making people seasick, but it truly isn't that bad at all. It's just because the waves here can be a bit bouncy, which can rock the shop. The passage is located near Cape Horn in South America. Many people dramatize their experience going through the Drake Passage, but it truly is an experience. Many adventure seekers come to Antarctica just to go through the Drake Passage.
You Should Know
As mentioned earlier in the tips section, be sure to pack seasickness medication just if the rocking of the boat gets to you. This is especially true when passing through the Drake Passage. 
Snowshoe through Antarctica’s nature
One of the best ways to witness the nature and beautiful landscapes in Antarctica is to go snowshoeing. Though this is a physical activity, it's unique and not something that you can do everywhere globally. Essentially, this activity consists of putting a pair of snowshoes on and trekking through the wilderness. This may even be included as an excursion already on your Antarctica cruise; just make sure you do your research before booking. This experience is often freezing, so make sure you dress with all your layers on.
You Should Know
This activity is best done by active people and can stand walking through heavy snow for a while to keep up with a guide. 
Go kayaking and whale watching
There are opportunities to go kayaking in Antarctica while you go whale watching at the same time! Talk about a unique experience. Often, you might not even be on the lookout for whales, but there's a high chance that you'll see at least one depending on the time of year that you visit. Similar to snowshoeing, this is a popular excursion that some cruises do offer. When kayaking, your tour guide will teach you more about the area and the nature Antarctica offers. This sort of activity is best for people who have been kayaking before, but beginners are also welcome to keep up with the group.
You Should Know
Because the wilderness in Antarctica is known for being a bit unpredictable, you'll want to stay alert the whole time that you're kayaking. 
Explore underwater by scuba diving
Though diving deep underwater might not be your cup of tea when visiting a place as cold as Antarctica, scuba diving is one of the top things to do here. That's because the water is so crystal clear that you can see quite a ways out when you go underwater. This is one of the best ways to get up close and personal with the few sea creatures in this area of the world as well. The minimum age for scuba diving is only ten years old in most places.
You Should Know
There aren't many options to learn how to go scuba diving in Antarctica, so you'll have to have already learned before visiting. 
Visit Deception Island
Deception Island is a volcano and island that last erupted recently in 1970. This volcano is still active, and nobody lives on the island, but it's always worth seeing out in the middle of the ocean near Antarctica. The best way to see Deception Island is from an Antarctica cruise or boat tour to safely see it from afar. It got its name, Deception Island, because it genuinely looks like a typical island from far away even though it's home to a deadly volcano that has erupted quite a few times in the past few hundred years.
You Should Know
Though the odds of Deception Island exploring are low when you visit, it's still considered an active volcano. Don't worry too much about the odds of it exploding. 
See Blood Falls
Blood Falls is a unique natural phenomenon in Antarctica. It's a waterfall over a glacier that is bright red (like the color of blood), but the color is caused by iron. It provides a fascinating landscape set against the familiar blue and white colors of Antarctica. This waterfall is the largest in Antarctica and is approximately five stories tall. It's said to have started being created around 2 million years ago and feeds into a lake that will forever be covered by ice.
You Should Know
The best way to witness Blood Falls is from an Antarctica cruise or tour. This will get you the best views of the waterfalls; don't forget your camera! 
Go overnight ice camping
Though it seems completely crazy, one of the top things to do in Antarctica is going overnight ice camping. It looks freezing too, but you'll be given all the essential overnight gear if you opt to participate in an adventure like this. Often, you'll be lying in a sleeping bag directly on the ice. You can watch the stars as you go to bed! If you aren't interested in laying directly on the ice, you can also opt to do ice camping in a pop-up shelter or tiny house. This is great if you aren't interested in being right out on the ice and cold for the entire night.
You Should Know
Camping on the ice overnight is entirely safe! It's best to book something like this with a group of other people trained to spend the night in the cold.