Travel insurance is an important part of protecting yourself from unexpected events during your trip. Many people are unaware that you can purchase travel insurance while you are already travelling. Depending on the insurer and the policy, it may be possible to purchase trip cancellation, medical, and other types of coverage while you are away. It is always best to purchase travel insurance before you leave, however, if you have not done so, you may still have the opportunity to purchase coverage during your trip. Be sure to research the available policies and coverage options to make sure you get the best protection for your vacation.