Thinking about visiting Antarctica? If you are, then there are some things that you should know about before you go. Penguin highways, biosecurity and whale alerts are just the beginning! So here are things that you need to know before visiting the seventh continent.

When it comes to visiting Antarctica, there is pretty much no chance of avoiding such an expensive expedition (远征). Cruises (航行) booked at the last minute can go for as little as $4,000 and luxury cruises can go for as much as $ 50,000.

When people have asked about how cold it is in Antarctica, they are always told that it very rarely gets below freezing, and on the non-windy days, you could easily get around the ship in no more than a T-shirt. Cold wind is much more of a factor than the temperature itself, so as long as your clothing is windproof, the cold really shouldn’t give you any trouble at all. More importantly,   you need to respect the   penguin highways.   Yes, a penguin highway is exactly what it sounds like! The penguins follow the same paths up and down hills, resulting in discernible ( 可识别的) tracks in the snow that have been affectionately   ( 亲切地 )   named   “penguin   highways”.   These highways are the penguins favorite way of getting around, so it is important not to walk on or over them, and not to get too close.

A whale alert is exactly what you’d expect it to be. When whales are found by the ship, the captain will announce it over the loudspeaker to give anyone who wants to see the wildlife half a chance. Whale alerts can come at any hour of the day or night, so make sure you always have a battery and memory card in your camera.

Maybe you think you have so much homework to do every day but not enough time. There are some ways     for you to save time and cheer up. Make good use of your time. There is a famous saying, which goes "More haste (匆忙), less speed." If you want to do everything in one day, you will do nothing well. You can arrange (安排) your time by making a list of things you need to do. And then decide which things are the most important. You can focus (集中) all your energy on them. Avoid meetings. Not all meetings are a waste of time, but many are. You will learn to refuse your friends when they invite you to outdoor activities. Avoid long conversations. You may have one or two close friends and they may be good at chatting. So you spend much time chatting on WeChat or QQ. If you don't want to waste time, you'd better try not to have long conversations with them and learn how to control time. Stay away from online games. It is a waste of time and energy to play online games. Many young people stayed up late playing online games. Also, it may cause health problems.

Nowadays Chinese students all have the heavy study tasks. They are busy with their study all the time. They always feel stressed. A recent survey by the Nightline Association (夜线协会) found that 65%o of students feel very stressed. Too much stress influences students study. So a famous expert gives two main pieces of advice to reduce the stress of the students.

At first, the students should have a varied and healthy diet eating fresh vegetables and lots of fruit is really important. Juice is filled with Vitamin C, such as orange or grape juice. It is said that it is good for your immune system (免疫系统). What’s more, healthy diet can help you reduce the study stress. Don’ t eat some snacks in the break between classes.

Then, doing sports at least once a week is the best way to reduce stress. It helps your body become strong. Even daily walks of 30 minutes can help reduce stress levels and it’s even better to do sports intensively (强烈地). Even if you don’t feel like it at the time, you will feel the benefits afterwards. Joining a sports club could also help with stress. You can communicate with other students freely during the time, and then the atmosphere (气氛) will improve your mood.

In the two ways above, students can reduce their stress. At a result, their study will become better and better.