Stay safe & healthy
Tourists should use common sense to ensure their safety. Avoid problems by not flashing large amounts of money, not visiting areas near the Colombian border, staying away from civil disturbances and not using side streets in big cities at night. Probably the biggest threat in most places is simple thievery: Belongings should not be left unguarded on the beach, for example, and pickpockets can be found in some of the more crowded areas, especially the Trolébus (Metro) in Quito, in bus terminals and on the buses themselves. Buses allow peddlers to board briefly and attempt to sell their wares; however, they are often thieves themselves, so keep a close eye out for them. Hotel personnel are generally good sources of information about places that should be avoided.
You can always ask tourist police officers, police officers or in Tourist information center for the dangerous regions.
Ecuador offers great opportunities for hiking and climbing, unfortunately, some travelers have been attacked and robbed in remote sections of well known climbs - several rapes have also been reported so female hikers/climbers need to be extremely careful. Travelers are urged to avoid solo hikes and to go in a large group for safety reasons.
Ecuador is widely considered to be a developing country and health hazards are a significant issue. Of the most significant are foodborne illnesses, though they can easily be treated with digestive drugs such as antacids or antidiarrheals.
Bottled water is key in Ecuador if you don't want to get sick. This doesn't only apply to foreigners who don't have the stomach for Ecuadorian food but also Ecuadorians who know that if they don't boil their water or drink it from the bottle that they can get very sick. As a result, it can be purchased almost everywhere (even in the most remote places) for well under $.25-.50. Water bottles are sometimes provided by hostels and hotels, which can be used for brushing teeth.
It is advisable to receive a typhoid vaccination, and possibly a yellow fever vaccination, depending on your specific area of travel.
Outside the major cities and tourist areas, malaria can be a problem along the coast during the rainy season.