Costa Rica is a small Spanish-speaking country of 4.5 million people in Central America. It is famous for its beautiful national parks which cover 25% of the country and are protected by its outstanding environmental preservation programmes; and for being the only country in the world without a military force. TEFL jobs do appear, albeit rarely - what a fantastic opportunity to work and live in a country leading the world in environmental matters! You should check which vaccinations you might need if you are going to live in Costa Rica.