Avoid wearing large amounts of jewelry because it targets you as a person of wealth. Dress modestly during your travels. When hiking, be sure that you dress appropriately for the temperature at the highest point of your trip. I've heard stories of people going without jackets or even socks during hiking trips in hot sultry areas, but when the cooler temperatures set in during the trip, they are freezing and paying fellow hikers for extra socks.
Lock your belongings in a secure safe and make sure that your room is secure before you go. You should also make a copy of your passport, insurance, and ticket information for your return flight. Keep these documents in the safe. Keep a copy of the emergency number for your credit cards and your credit card number in the safe, too. If your credit cards become lost or stolen, you'll need this information to make the report to the companies or the bank.
You should contact your bank and let the representative know that you will be traveling abroad. Why? The bank might think that your transactions are suspicious and suspend your account. I had this experience once while abroad.