adventure travel is now becoming popular with many teenagers. Gone are the days when you could only go on vacation with adults. from heli-hiking (helicopter flights and long distance walks) and mountain climbing to white-water rafting or whale-watching, adventure vacations can now give you more variety excitement than ever. you don't have to be a top athlete to go on a walking, sailing, or sports vacation, buy do you need to de well prepared in lost of way. if you and your friends are planning an exciting trip someone this year, there are a few thing you ought to kwon before you sat off.