We also require that you take out travel insurance when you book your holiday. Travel Insurance is an essential part of any trip and helps to cover you when things go wrong. Travel insurance protects you in the case of lost or stolen luggage and personal effects; accident or illness, trip cancellation or personal liability. Probably the most important reason to take out travel insurance is to ensure you are covered for medical treatment. Although your national health scheme may cover your medical expenses at home, once you head overseas, you are (normally) no longer covered. Medical expenses can run into the hundreds of thousands of dollars and you may be refused treatment if you are not insured.