Exploring a foreign land means you will be conforming to new and unknown rules; as such, taking care of a few preliminaries will save you loads of time and hassle should the need arise. In case your passport gets stolen or lost, you should be able to return to your home country by proving your citizenship, as such, make sure that you have copies of your passport, to submit to your countries embassy or any officer in authority. You should also, leave a copy of your passport at home, with someone who can get it to you in an emergency. Last but not least, register yourself with your embassy, this will save a lot of trouble in the long run. Travelling via a tour operator is another safeguard, as you will be with a group (depending on the package) and under the responsibility of the agency; choose from those such as macktrip.com in Sri Lanka.