The best time to visit Sri Lanka is generally from December to March when the weather is dry and sunny in most parts of the country. However, the east coast is best visited from April to September.

It's recommended to be up-to-date on routine vaccines such as measles-mumps-rubella (MMR) vaccine, diphtheria-tetanus-pertussis vaccine, varicella (chickenpox) vaccine, polio vaccine, and your yearly flu shot. Additionally, depending on your travel plans, you may need vaccinations for hepatitis A, typhoid, and yellow fever.

Overall, Sri Lanka is a safe travel destination. However, it's always essential to exercise common sense and take precautions as you would in any other country. Stay updated on travel advisories and avoid any areas with political unrest.

The currency of Sri Lanka is the Sri Lankan Rupee (LKR). It's recommended to exchange your currency for rupees upon arrival at the airport or at authorized exchange offices. Credit cards are widely accepted in major cities and tourist areas.

Sri Lanka offers a wealth of attractions, including ancient cities like Anuradhapura and Polonnaruwa, cultural sites such as the Temple of the Tooth Relic in Kandy, scenic train rides through the hill country, safari in Yala National Park, and relaxing on the pristine beaches of Mirissa or Unawatuna.

Sri Lanka has a tropical climate, so lightweight and breathable clothing are ideal. Modest clothing is recommended when visiting religious sites, and it's essential to dress appropriately if you're planning to trek or hike in national parks.

Sri Lankan cuisine is diverse and flavorful, with influences from Indian, Malay, Arab, and Dutch cuisines. Must-try dishes include rice and curry, hoppers (a type of pancake), kottu roti (chopped roti with vegetables and meat), and a variety of seafood dishes.