Lonely Planet - Costa Rica - Comprehensive facts and advice for traveling along with background material on the culture and history of the country. Key to Costa Rica - Author Beatrice Blake has 30 years experience traveling in country, gives planning advice based on your interests, time frame and budget. Travel Costa Rica Online - Trip planning information including activities, attractions, and region descriptions. World Travel Guide - Costa Rica - Tourist and business travel information with facts on climate, visa, health, passport, currency and customs requirements. Health Information for Travelers to Costa Rica - Health recommendations and advice provided by the U.S. Government Centers for Disease Control and Prevention (CDC). Costa Rica Tourism Board - Official site that offers regional info, comprehensive hotel listings, maps, and information about fun activities and attractions. Also has a complete listing of national parks and their amenities. US State Department - Costa Rica Consular Information Sheet - Offers travel information including Background Notes, entry and exit requirements, safety and security, crime, health and transport.