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Sri Lanka visa is required for most international travelers entering the country. Tourists can apply for an Electronic Travel Authorization (ETA) online, which is valid for 30 days and allows a double entry. Business travelers and transit passengers also need specific visas. Nationals of certain countries are eligible for visa-free or visa-on-arrival entry. Ensure your passport is valid for at least six months. Visit the official Sri Lanka ETA website for accurate information and updates.