Travel insurance is mandatory when you go hiking in Nepal, not just the Annapurna Base Camp Trek. It is essential to insure yourself against accidents, injuries, and illnesses. You should be careful to insure yourself entirely during the entire duration of the trip. You should also ensure that every activity, excursion, and destination that comes under your trip activity is insured. Your insurance coverage must include helicopter evacuation and repatriation costs, apart from the regular coverages against cancellation and medical expenses.