Make photocopies of your passport and travel documents before leaving. Carry one set of copies in your luggage and leave another set with your family or friends. Also, email them to yourself and to a family member or a friend. In case you lose or damage the photocopies too, then you will have the details by email or if required your family member or friend can email the copy to the authorities. Although it is not compulsory to show a photocopy of your passport if the original is lost, the backup will help you with the required details, including your passport number, when lodging a complaint. Also, it is prudent to buy travel insurance that includes cover for the loss of a passport. If you have booked the trip through an agency, note their contact numbers, especially any emergency numbers.