I have found that some good websites for buying cross country skis are skis.com, xcskishop.com, orscrosscountryskis.com, etc. These are very reputable websites for skis
No cross-country skiing and skiing are two completely different things. They require different equipment. There are "slope" skis which most people are used to that attach to your foot and boot completely. The cross country skis have your heel loose to make it easier to propel yourself forward. Skiing is done on a slope or mountain and cross country isn't necessarily on a hill. They go across all sorts of terrain.
Finding a retail store that sells women's Roxy skis is not a very challenging thing to do at all. One can easily buy women's Roxy skis on the website Skis.
One can purchase used skis in New York from many retailers. They are available to buy from Paragon Sports, Eastern Mountain Sports and Play It Again Sports.
The best place to search for discounted skis online is a place like Kijii where people post their used skis. If a person was looking for new they could check sporting good stores and look for sales.
No-one has ever crossed the Antarctic on skis. It would most likely be suicide, and you would have to have a sledge/vehicle to carry provisions with you, unless you want to carry everything on your back (not advised).
Skis has one syllable.
Cross country skiing involves gliding on skis over snow, while snowshoeing involves walking on snow with special shoes. Cross country skiing requires more technique and balance, making it better suited for those with some experience in skiing or other sports. Snowshoeing is easier for beginners as it is more similar to walking and requires less skill.
No, the plural form skis is a regular plural for the singular noun ski. A regular plural is a noun to which an -s or an -es is added to form the plural. An irregular plural is plurals formed in some other way.
"Cross Country" is two words. Are you interested in joining?
You can purchase head skis at some sports shops, and definitely at winter sports specific shops, but you can also buy them from Head's website itself, which has a very wide selection to choose from.
One can go to various ski resorts in order to learn how to ski cross country. They have lots of classes that you can take about cross-country skating.
Top of the line skis for one week is around €100.