A travel-insurance policy to cover theft, loss and medical problems is a good idea. There are a wide variety of policies available, so check the small print.
Some policies specifically exclude 'dangerous activities', which can include scuba diving, motorcycling and even trekking. A locally acquired motorcycle licence is not valid under some policies.
Worldwide travel insurance is available at www.lonelyplanet.com/travel-insurance. You can buy, extend and claim online anytime – even if you’re already on the road.